=Paper= {{Paper |id=Vol-3073/paper1 |storemode=property |title=Representing Gender in Ontologies: A Dispositional Perspective |pdfUrl=https://ceur-ws.org/Vol-3073/paper1.pdf |volume=Vol-3073 |authors=Fumiaki Toyoshima,Adrien Barton,Paul Fabry,Jean-François Ethier |dblpUrl=https://dblp.org/rec/conf/icbo/ToyoshimaBFE21 }} ==Representing Gender in Ontologies: A Dispositional Perspective== https://ceur-ws.org/Vol-3073/paper1.pdf
Representing Gender in Ontologies: A Dispositional Perspective
Fumiaki Toyoshima 1, Adrien Barton2,1, Paul Fabry 1 and Jean-François Ethier 1
1
     GRIIS, Université de Sherbrooke, 2500 Boulevard de l'Université, Sherbrooke, QC, J1K 2R1, Canada
2
     IRIT, CNRS, 118 Route de Narbonne, F-31062 Toulouse Cedex 9, Toulouse, France

                                  Abstract
                                  Like biological sex, gender is a crucial determinant of health. Its representation nonetheless
                                  remains underdeveloped in many electronic medical records and health information standards.
                                  This paper explores an ontological characterization of gender in compliance with the OBO
                                  principles for ontology development and the BFO upper ontology. In particular, we deploy
                                  J. McKitrick’s dispositional account of gender (identity). Our main proposal is that gender can
                                  be analyzed as a behavioral and “extrinsic” disposition, as distinct from the BFO category of
                                  disposition. We also briefly discuss the implications of our dispositional approach to gender
                                  for so-called “gender roles” and gender-related information entities in existing ontologies.

                                  Keywords 1
                                  gender, gender role, gender information entity, disposition, extrinsic disposition, role,
                                  realizable, Open Biological and Biomedical Ontologies (OBO) Foundry, Basic Formal
                                  Ontology (BFO)

1. Introduction
    A correct understanding of various attributes (e.g. age) of patients is paramount to appropriate
healthcare of patients. Sex and gender are particularly important because their differences will have a
profound effect on the development of chronic diseases and health-relevant lifestyle choices [1]. It is
nonetheless all too often the case that health records fail to represent accurately sex and gender, or even
their distinctness [2]. For instance, Lau et al. [3] report a lack of clarity and inconsistencies in the
definition and their implementation of sex and gender in Canadian Electronic Health Records (EHRs)
and in international health information standards. They also propose six-level general actions to
modernize sex and gender definitions in Canadian EHRs, ranging from the articulation of the need for
this work to the demonstration of its benefits in tangible terms.
    This paper aims to contribute to Lau et al.’s second-level action to reach consensus on sex/gender-
related notions that would help to improve Canadians’ health. In particular, we will focus on gender
itself. According to the World Health Organization (WHO), gender amounts to characteristics that are
largely socially created and sex encompasses those that are biologically determined [4], although sex
may have a causal (albeit non-definitive) influence on gender. However, this characterization of sex
and gender is too loose to be well implemented in EHRs. Conversely, a very narrow definition of them
may yield the socio-ethically undesirable consequence of neglecting underserved sex/gender minorities.
    To meet this challenge, we will adopt a methodology to consider the notion of gender in the field of
formal ontology. An ontology is an explicit representation of a given domain that is provided in formal
language and it is expected to be a powerful tool for enhancing the integration of data that are dispersed
in different information systems. An ontological analysis of gender will provide its suitably general and
computationally readable representation that can benefit the management of EHRs and have wide
implications not only for gender-related notions such as administrative and legal genders, but also for
informational entities about sex and gender [2], as they are as important to EHRs as gender itself is.



Proceedings International Conference on Biomedical Ontologies 2021, September 16-18, 2021, Bozen-Bolzano, Italy
EMAIL: toyo.fumming@gmail.com (A. 1); adrien.barton@irit.fr (A. 2); paul.fabry@usherbrooke.ca (A. 3); ethierj@gmail.com (A. 4)
ORCID: 0000-0002-4690-1221 (A. 1); 0000-0001-5500-6539 (A. 2); 0000-0001-9408-0109 (A. 4)
                               © 2021 Copyright for this paper by its authors.
                               Use permitted under Creative Commons License Attribution 4.0 International (CC BY 4.0).
    CEUR
    Wor
    Pr
       ks
        hop
     oceedi
          ngs
                ht
                I
                 tp:
                   //
                    ceur
                       -
                SSN1613-
                        ws
                         .or
                       0073
                           g

                               CEUR Workshop Proceedings (CEUR-WS.org)
    The paper is organized as follows. Section 2 adumbrates the role of ontologies in the context of
medical informatics. Section 3 introduces state-of-the-art philosophical theories of gender, especially
its dispositional account elaborated by McKitrick [5]. Section 4 develops our McKitrick-inspired
dispositional representation of gender in ontologies. Section 5 is devoted to a brief discussion. Section
6 concludes the paper with some remarks on future work.

2. Ontologies in Medical Informatics

    In recent years, considerable effort has been invested to leverage an increasing amount of data and
information that are obtained from clinical encounter. However, it remains a thorny issue to ensure the
interoperability among different data sources (e.g. databases) that are employed by different medical
institutes. One traditional solution to this problem is to build a so-called “data warehouse” into which
variegated data sources can be integrated. This approach is nonetheless severely limited by distinct
regular and legal frameworks across institutes and countries as well as by its failure to optimize clinical
decision support owing to delayed data generation and delivery.
    Another recent proposal is to create a “central data model” [6] onto which local data source models
can be mapped and which supports query expression. This “mediation approach” [7] to data has the
advantage of enabling data transmission only when it is needed and allowed by the local data source
curator, so that each data source can preserve its own terminology and structure. One tool that can serve
as such a central data model is an ontology: the kind of machine-readable representation of the entities
and their relations in a given domain which is formalized in some logical language.
    To be utilized as central data models, biomedical ontologies need to be developed in a mutually
consistent way. To achieve this goal, for instance, the Open Biological and Biomedical Ontologies
(OBO) Foundry [8] provides a set of methodological principles that would be useful for coordinating
ontologies to facilitate biomedical data integration: for instance, the Aristotelian method for defining
terms [9]. One noteworthy requirement of OBO ontologies (by which we mean ontologies following
the OBO principles) is the usage of some upper ontology: an ontology that deals with the most general
categories and relations of reality (e.g. time, objects, properties, processes, and the part-whole relation)
and that would help to construct intercommunicable domain ontologies. In point of fact, many OBO
ontologies are built upon Basic Formal Ontology (BFO) [10]. BFO is an upper ontology motivated by
a scientific perspective on what exists in reality [11] and it is recognized by the International Standards
Organization (ISO/IEC PRF 21838-2.2). As is illustrated by the fact that upper ontologies are entwined
with such philosophical notions as time, an important field called “formal ontology” is an
interdisciplinary intersection at which philosophers, linguists, cognitive scientists, and computer
scientists collaborate.
    We will below explore an ontological representation of gender in alignment with the OBO and BFO
frameworks. As a preliminary to this task, we will provide a brief overview of philosophical theories
of gender and delineate McKitrick’s [5] dispositional account of gender because it is expected to
accommodate sexual and gender minorities, who may have special needs of healthcare.

3. Theories of Gender
3.1. A Brief Overview

   The notion of gender is traditionally closely associated with sex. For that matter, it is a long-standing
practice to lump sex and gender together based on a discrete single binary classification in existing
Canadian EHRs [3]. However, it is nowadays an established view that they should be sharply
distinguished, and that the words “man” and “woman” should be used to refer to people of a specific
gender rather than to people of a specific sex. The categorization must also go beyond the sole man-
woman dichotomy, as evidenced by non-binary people who do not identify themselves as women nor
as men. Note that, while recognizing that both sex and gender are so complex and multifaceted, we will
sometimes appeal to the very rough binary gender distinction (man/woman and masculinity/femininity)
merely for expository purposes. But what is gender? A number of different answers to this question
have been proposed, especially since de Beauvoir’s [12] feminist theorizing upon sex and gender. In
the interests of space, we will briefly present Haslanger’s [13] account of gender, as it is arguably one
of the most influential theoretical works on gender.
    According to Haslanger [13], gender is a socially constructed category. Following Beauvoir’s slogan
“gender is the social meaning of sex”, she defines men and women in a broad social structure of
privilege and subordination, respectively:

  [A subject/person] S is a woman (resp. man) iff:
  (i) S is regularly and for the most part observed or imagined to have certain bodily features presumed
  to be evidence of a female’s (resp. male’s) biological role in reproduction;
  (ii) that S has these features marks S within the dominant ideology of S’s society as someone who
  ought to occupy certain kinds of social position that are in fact subordinate (resp. privileged) (and so
  motivates and justifies S’s occupying such a position); and
  (iii) the fact that S satisfies (i) and (ii) plays a role in S’s systematic subordination (resp. privilege),
  that is, along some dimension, S’s social position is oppressive (resp. privileged), and S’s satisfying
  (i) and (ii) plays a role in that dimension of subordination (resp. privilege). ([13], p. 234)

At the core of her definition of gender is that “woman” (resp. “man”) refers to a category of people who
are given a subordinate (resp. privileged) social position owing to the fact that they are regarded as
having certain bodily features associated with a female (resp. male’s) reproductive role.
    Leaving examination of Haslanger’s theory for the next subsection, we remark that her account of
gender has led to a wide variety of contemporary approaches to gender. Being strongly influenced by
Haslanger, for instance, Ásta [14] develops a “conferralist framework” for social categories/properties
(including gender): a social property of an individual means a property that is conferred on the
individual by others in a context, by which she means a social status consisting in constraints on and
enablements to the individual’s behavior in that context. By conferring social properties, people are
attempting to track a “base property” of the individual such that they think the individual possesses it,
regardless of the truth. For Ásta, gender is a social property and examples of its related base properties
include roles in biological reproduction and in societal organizations of various kinds, sexual
engagement, bodily presentation, preparation of goods at family gatherings, and self-identification.

3.2. J. McKitrick’s Dispositional Account of Gender

    We gave a concise overview of philosophy of gender by presenting Haslanger’s [13] and Ásta’s [14]
theories. It may be admitted that these two accounts are more or less useful for some goals, as
Haslanger’s project intends to fight for social justice. It is nonetheless questionable whether they
provide a suitable theoretical basis for gender representation in clinical practice. To see this, let us take
McKitrick’s [5] example of gender dysphoria. According to a guideline [15] for standards of care for
transgender people, gender dysphoria refers to discomfort or distress that is caused by a discrepancy
between a person’s gender identity and that person’s sex at birth. Imagine that Sam has a biologically
male body, plays a masculine social role (e.g. of dressing masculinity-demonstrating clothes in her
society), and is long thought to be a man in her society. However, she suffers in silence from this
situation and identifies herself inwardly as a woman. It is doubtful whether Sam’s inner gender can be
accounted for within the scope of Haslanger’s and Ásta’s very socially oriented accounts of gender.
    From a medical point of view, the kind of gender formalization that we are seeking should be helpful
in providing psychological and clinical care of the person Sam with gender dysphoria, so that she will
overcome a variety of difficulties that are associated with her gender identity and expression.
Haslanger’s and Ásta’s definitions of gender may be unfit for this purpose, however, because these
definitions conceptualize gender purely in terms of how an individual is observed by others in a certain
context and they are lacking in consideration of subjective and psychological aspects of gender. More
generally, they may fail to explain the distinctive inward aspect of gender. On Haslanger’s account, for
instance, we would have no man/woman distinction in a completely gender-equal society.
    Accordingly, we will need a more descriptive and less value-laden theory of gender that can be
utilized for gender representation in medical data records. Let us now introduce McKitrick’s [5]
dispositional account of gender because it can be used to satisfy a need for gender representation in the
clinical field. First of all, she argues in favor of the (albeit rough) distinction between a gender role and
gender (identity), thereby saying that Haslanger’s and Ásta’s approaches are about gender roles, but not
about gender. In our understanding, the difference between gender roles and gender can be illustrated
with Sam’s masculine social role and her inner feminine gender, respectively. It nonetheless requires
close scrutiny how gender is to be distinguished from gender roles in ontologies. We will briefly address
this issue in Section 0 by discussing the term “gender role” that is defined in the OBO- and BFO-based
Ontology of Medically Related Social Entities (OMRSE) [16].
    McKitrick investigates gender, while taking a cue from Butler’s [17] “performative account” of
gender. For Butler, gender is a matter of a pattern of behaviors in a certain context: for instance, a
person’s patterns of dress, posture, and speech are not expressions of the person’s gender, but are instead
constitutive of being gendered. On the one hand, Butler’s theory implies (as with Haslanger’s and
Ásta’s) that gender is socially relative to some extent because it depends partially on social convention
whether a pattern of behaviors qualify as masculine or feminine. On the other hand, it explicitly intends
to ensure (pace Haslanger and Ásta) the possibility that the behaviors that constitutes one’s gender can
construct one’s identity at the same time.
    McKitrick’s dispositional account of gender can be seen as a further development of Butler’s
performative one, as McKitrick has some concerns as to Butler’s account. For instance, a person does
not cease to be gendered even when the person is not behaving in a gender-specific way or is not
behaving at all. Furthermore, one could be a woman (resp. a man) while exhibiting patterns of masculine
(resp. feminine) behavior for a prolonged period of time, as is illustrated by the transgender person Sam.
Taking these possibilities into consideration, she suggests that gender should be a disposition to behave
in a certain way in a certain context, rather than actually behaving currently in such a way.
    To explain dispositions in more detail, she offers “five marks of dispositionality”, namely jointly
sufficient (but not individually necessary) conditions for dispositionality. That is to say, a property
(particular) is a disposition if it:

   1. has some characteristic manifestation M [type-level entity];
   2. is such that some circumstance C [type-level entity] will trigger manifestation M;
   3. can be possessed without manifestation M occurring;
   4. is instantiated by things of which a conditional of the form “if it were subject to circumstance
   C, it would exhibit manifestation M” is generally true; and
   5. can be accurately characterized with an expression of the form “the disposition to produce
   manifestation M in circumstance C”. ([18], p. 2)

To take a canonical example, fragility is a disposition because (1) it has a characteristic manifestation
of breaking, (2) it will be triggered when its bearer is pressed with force, (3) it can be possessed without
the occurrence of breaking, (4) it is borne, for example, by this glass such that “If the fragility is subject
to the circumstance in which the glass is pressed with force, then it would exhibit the manifestation of
the breaking of the glass” is generally true, and (5) it can be accurately characterized with an expression
of the form “the disposition to break when pressed with force”.
    Based on this understanding of dispositions, she roughly presents her dispositional theory of gender
as follows:

   [A person] x is gender G [e.g. “feminine”, “masculine”] iff:
       x has (sufficiently many, sufficiently strong) [particular] dispositions D1…Dn to behave in ways
       B1…Bn [which are particular behaviors] in [particular] situations S1…Sn, and
       the relevant social group considers behaving in ways B1… Bn in situations S1…Sn to be G.
                                                                                           ([5], p. 2581)

Note that this formulation may at best elucidate the notion of gender instead of defining it explicitly
because the term “be gender G” figures in the left and right hands of the formulation. To illustrate this
dispositional approach to gender with our driving example, Sam is feminine in virtue of the fact that
she has many dispositions that can be realized in her behaviors that are considered feminine by a social
group to which she belongs and that are all together strong enough to construct her identity. Examples
of such dispositions include Sam’s disposition to be manifested in her behavior of wearing a pink silk
dress which her social group takes to be feminine. We will delve into these dispositions to be manifested
in gendered behaviors in Section 0.
    Quite importantly, this claim implies that dispositions that constitute gender would be extrinsic. It
is a prevailing orthodoxy that dispositions are intrinsic. The distinction between intrinsic and extrinsic
properties is notoriously difficult to define explicitly, but the basic idea is that a property (instance) is
intrinsic if it (exists and) inheres in its bearer purely in virtue of the way the bearer is and it is extrinsic
otherwise, scilicet if it (exists and) inheres in its bearer (at least partly) in virtue of the way the world
that is external to the bearer is [19]. The fragility of this glass is intrinsic because the glass is fragile
under any external circumstances (even when packed in a bubble wrap), for instance. In contrast, an
individual’s gender is a cluster of behavioral dispositions the nature of whose manifestations (i.e. the
bearer’s behaviors) is (partly) determined by other members of a social group to which the individual
belongs (see Section 0 for more details).
    Finally, McKitrick’s dispositional view of gender will have some interesting and perhaps also
controversial consequences. First of all, it implies that one can have multiple genders (e.g. if one has
both dispositions to act in ways deemed as masculine by a certain social group and dispositions to act
in ways deemed as feminine by the same social group) and one can have different genders in different
contexts (e.g. if one has dispositions to act in ways that are deemed masculine by a social group and
feminine by another social group). In addition, a social group can be wrong about a person’s gender if
its members do not know enough about the person’s behavioral dispositions: for example, when the
social group makes false assumptions about them based on the person’s physical appearances.
Therefore, her approach to gender can recognize there being a discrepancy (as exemplified by Sam)
between the appearance and the reality of gender.
    Moreover, this dispositional account of gender does not exclude the possibility that a person can be
wrong about his or her own gender. Interestingly enough, McKitrick says that this possibility is
implicitly acknowledged by the aforesaid guideline [15] for standards of care for transgender people.
The guideline says that one of the minimum criteria for adolescents with gender dysphoria to receive
puberty-suppressing hormones is: “The adolescent has demonstrated a long-lasting and intense pattern
of gender nonconformity or gender dysphoria (whether suppressed or expressed)” (ibid., p. 19).
McKitrick explains: “The expressed purpose of this measure is to ensure that the individual is correct
about their own gender identity before making any irreversible changes to their body” ([5], p. 2582).
For according to the guideline: “Health professionals can assist gender dysphoric individuals with
affirming their gender identity (…) and making decisions about medical treatment options for
alleviating gender dysphoria” ([15], p. 9, emphasis added). Table 1 provides a brief comparison between
Haslanger’s [13] feminist and McKitrick’s [5] dispositional approaches to gender.


Table 1
Comparison between Haslanger’s [13] and McKitrick’s [5] theories of gender
 Theory of gender       Haslanger’s feminist theory            McKitrick’s dispositional theory
     Basic idea     Gender is a category of people who      Having a gender is a matter of having
                      are given a social position (e.g.        extrinsic dispositions to behave
                     women in subordinate positions)            in gendered-considered ways
  Characteristics  - Developed with the polico-social - Developed taking into account
                      aim of fighting for social justice        the subjective aspects of gender
                   - Focuses primarily on the social - Focuses on “gender identity”
                      import of gender                          rather than “gender roles”


4. Representing Gender in Ontologies
4.1. Gender as a Behavioral and “Extrinsic” Disposition

   We looked through some contemporary philosophical theories of gender (namely, Haslanger’s [13]
and Ásta’s [14]) and put forward the idea that McKitrick’s [5] dispositional account of gender can be
effectively utilized for representing gender in information systems because it has the potential to
contribute to appropriate medical care of transgender people, such as our imaginary person Sam with
gender dysphoria. We will now consider a way of formalizing this dispositional approach to gender in
accordance with the OBO and BFO ontologies. First and foremost, gender per se (as well as sex) has
been scarcely meticulously analyzed in these frameworks. For instance, the Gender, Sex, and Sexual
Orientation (GSSO) ontology [20] is an OBO-compliant ontology designed to collect and organize a
large number of existing terms that pertains to gender, sex, and sexual orientation. As Fabry et al. [2]
point out, however, the GSSO ontology is only partially aligned with BFO’s foundational basis.
     To explore an ontological representation of gender, we begin by explaining the basic structure of
BFO. BFO has the top-level distinction between continuants and occurrents, the former being further
divided into independent continuants and dependent continuants. Among dependent continuants are
specifically dependent continuants, which depend (existentially) on at least one independent continuant.
As for occurrents, we will focus on one of its subcategories, namely processes: occurrents that exist in
time by occurring, have temporal parts, and depend on at least one independent continuant as participant.
Two major subtypes of specifically dependent continuants are realizable entities (which will be detailed
below) and qualities: specifically dependent continuants (e.g. color, shape, and mass) that do not require
any further process in order to be realized.
     A realizable entity is a specifically dependent continuant that inheres in some independent
continuant and is of a type some instances of which are realized in processes of a correlated type. BFO
identifies two direct subtypes of realizable entities, namely dispositions and roles. First of all, a role in
BFO is: “a realizable entity that (1) exists because the bearer is in some special physical, social, or
institutional set of circumstances in which the bearer does not have to be (optionality), and (2) is not
such that, if this realizable entity ceases to exist, then the physical make-up of the bearer is thereby
changed (external grounding)” ([10], pp. 99-100). Therefore, a role is an optional and externally
grounded realizable entity. Suppose for instance that Mary is a student at the XYZ college. Mary has
the role of being a student (which may be realized e.g. in a process of Mary’s studying), for she happens
to be in the XYZ college (optionality) and she does not undergo physical changes just because she
ceases to be a student (externally grounded).
     By contrast, a disposition in BFO is: “A realizable entity (…) that exists because of certain features
of the physical makeup [material basis] of the independent continuant that is its bearer” ([10], p. 178).
BFO also describes a disposition as an internally grounded realizable entity: if a disposition ceases to
exist, then the physical make-up of the bearer is thereby changed. To use a classical example, the
fragility of this glass can be realized in a process (realization) of breaking when it is pressed with force,
it is based on some structured molecules (material basis) of the glass, and the glass is physically changed
when it is no longer fragile (internally grounded).
     One prima facile plausible way to formalize gender in McKitrick’s fashion would be to classify it
as a subtype of BFO:disposition, since she endorses its dispositional interpretation. According to
Toyoshima et al. [21], however, this straightforward construal may be questionable because
McKitrick’s conception of dispositions would be wider than their BFO category. On McKitrick’s
account, gender is a cluster of what she calls “extrinsic dispositions” and she justifies this non-orthodox
kind of dispositions on the grounds that they mesh with her five marks of dispositionality. However,
BFO says that dispositions are internally grounded realizable entities (in the sense above explained).
This stands in marked contrast with McKitrick’s extrinsic dispositions because they are borne (at least
partly) in connection with the world that is external to its bearer and they can cease to exist when the
external world changes, even without the bearer’s physical changes. In this sense, extrinsic dispositions
can be taken to form a subtype of externally grounded realizable entities (just as roles are) in BFO.
     To be concrete, consider the following two entities that both qualify as dispositions in McKitrick’s
flexible sense of the term:

   •    Sam’s disposition dS1 to be realized in her behavior of wearing a pink silk dress;
   •    Sam’s disposition dS2 to be realized in her behavior of wearing a pink silk dress which is
   considered to be feminine in Sam’s social group.

On the one hand, dS1 is intrinsic and it is a disposition in BFO because Sam can wear a pink silk dress
independently of circumstances surrounding her. Note that the term “a pink silk dress” refers to any
instance of the type Pink silk dress (rather than this particular pink silk dress) and dS1 does not depend
on a particular pink silk dress that would be external to Sam (if this were the case, dS1 would be extrinsic).
    On the other hand, dS2 would be arguably better characterized as extrinsic. Consider first visibility,
as it is a paradigmatic example of extrinsic dispositions [18]. Something is visible if it is disposed to be
seen and the same thing might be visible to some perceivers, but not to others, e.g. when it emits
wavelengths of light that can be perceived by certain kinds of creatures. This line of thought could
justify the claim that visibility (which is the disposition to be seen) is extrinsic on the grounds that
whether something is visible or not depends on who or what is looking at it. Certainly, this argument
may not be very strong because the term “visible” would be polysemous. As McKitrick [18] further
argues, however, its common usage (e.g. “The Eiffel tower will not be visible today”) corresponds to
the following rough counterfactual: “If a normal human perceiver looked towards something under
current conditions, the perceiver would see it.” Since the term “current” is indexical, the truth of this
counterfactual is context-relative and visibility can be plausibly taken to be an extrinsic disposition
(recall the fourth mark of dispositionality in Section 0).
    These considerations in favor of the extrinsic view of visibility would serve to understand the present
thesis that dS1 is intrinsic but dS2 is extrinsic. To be sure, dS1 and dS2 are both behavioral dispositions
(namely, dispositions to be realized in behaviors of the bearer) and they are linked in the sense that
every realization of dS2 is a realization of dS1, but not vice versa. However, dS2 can be realized in Sam’s
feminine behavior of wearing a pink silk dress and it is generally acknowledged that what counts as
feminine, or as gendered for that matter, is at least partially socially determined. Just as being seen is
relative to perceivers, so a person’s gendered behaviors are relative to the social convention of a
community a member of which the person is. Thus, just as visibility (which is the disposition to be
seen) is extrinsic, so are dispositions (e.g. dS2) to behave in ways that are regarded as gendered.
    McKitrick [18] makes a further point to strengthen the argument that dispositions to behave in
gendered ways (which we will call “gendered behavioral dispositions” for simplicity) are extrinsic. First,
the fact that certain behaviors count as gendered can causally impact the way people are disposed to
engage in them. For example, some people in Sam’s social group may avoid wearing a pink silk dress
because they do not want to be considered feminine. This could imply that gendered behavioral
dispositions are bona fide dispositions. For dispositions in McKitrick’s broad sense of the term and
realizable entities in BFO largely overlap each other and they are both generally characterized by their
causal relevance to their realizations (see Toyoshima et al.’s [21] detailed discussion), gendered
behaviors have the sort of causal import that does emanate from being considered gendered, and the
causal import of gendered behavioral dispositions is determined in connection with that of gendered
behaviors. We will henceforth employ the term “gendered behavioral disposition” to refer to a subtype
of extrinsic dispositions.
    At the same time, it will be important to articulate the relationship between gendered behavioral
dispositions (e.g. dS2) which are extrinsic and ordinary behavioral dispositions (e.g. dS1) which are
intrinsic. We will call the latter dispositions “intrinsic behavioral dispositions”. Following Williams
[22], we can think that an extrinsic disposition of something relies (existentially) on [21] some intrinsic
disposition (“intrinsic dependee”) of the bearer in the sense that without the latter, the former would
cease to exist. To illustrate this, dS1 is an intrinsic dependee of dS2 and this entails that every realization
of dS2 is a realization of dS1, but not vice versa. Generally speaking, every gendered behavioral
disposition has as intrinsic dependee some intrinsic behavioral disposition.
    To recapitulate, we propose the following textual definition of gender in alignment with McKitrick’s
[5] formulation of gender (see Section 0) and the OBO principle about definition creation:

        gender =def. An extrinsic disposition (i) to be realized in behaviors of the bearer that are
        considered gendered by a social group to which the bearer belongs and (ii) that is strong enough
        to construct the bearer’s identity.

It should be underlined that, when located within the BFO framework, extrinsic dispositions (including
gendered behavioral ones) would belong to a subtype of realizable entities that is disjoint from the BFO
category of disposition (see Section 0 for a brief discussion on the subtle relationship between extrinsic
dispositions and roles in BFO, especially between gendered behavioral dispositions and gender roles in
the OMRSE).
    One may suspect that this definition of gender is uninformative, for it seems to be circular because
its definiens includes the term “gendered”. First of all, even if circular definitions tend to be regarded
as vicious, some of them can be appropriately benign. To take a canonical example, upper-level entity
terms (e.g. “continuant” and “occurrent” in BFO) are hardly definable without circularity and they can
be at best elucidated together with the examples to illustrate the entities to which they can apply (cf.
[10], p. 89). This line of reasoning can also go for the definitions of some domain-specific entity terms
such as “occurrent belief” [23][24] (a mental process of “taking something to be the case”, which might
be synonymous with “believing”) and presumably “gender” because the significant socio-historical
element of gender might possibly justify accounting for being gendered by being considered gendered.
     In addition, it may be socio-ethically concerning to over-specify “gendered” in the definiens so as
to avoid circularity. For instance, it may render the definition more informative to replace “gendered”
by another term “masculine or feminine”. As we said in Section 0, however, this binary categorization
of gender is nowadays subject to criticism, as is witnessed by contemporary (e.g. feminism-inspired)
social and political movements. Moreover, an “accurate” understanding of gender may change
dramatically in the future. All these points being considered, we would have good reason to preserve
the term “gendered” in the definition of “gender” that should ideally remain long unaltered in ontologies.

4.2. Formal Representation

    We will provide a formal representation of gender in ontologies, especially the one in the Web
Ontology Language (OWL) based on the Manchester Syntax [25]. To forestall confusion, we will write
terms for instances and relations in bold and terms for classes in italic, respectively. Figure 1 provides
an is-a hierarchy of important classes which are not necessarily mutually exclusive, including the ones
extracted from existing ontologies such as BFO and the OMRSE (where a class A being a subclass of a
class B implies all instances of A being instances of B). Table 2 lists predicates that represent binary
relations with their informal explanation:

    BFO:Independent continuant
       BFO:Object
                NCIBTaxon:Homo sapiens (http://purl.obolibrary.org/obo/NCBITaxon_9606)
                        Gender bearer
       BFO:Object aggregate
                Social group2
    BFO:Specifically dependent continuant
       BFO:Realizable entity
                BFO:Disposition
                        Intrinsic disposition
                                 Intrinsic behavioral disposition
                BFO:Role
                        OMRSE:Gender role
                Extrinsic disposition
                        Gender
                        Gendered behavioral disposition
    BFO:Process
       GO:Behavior (http://purl.obolibrary.org/obo/GO_0007610)
                Gendered-considered behavior


Figure 1: An is-a hierarchy of relevant classes


2
 The NCI Thesaurus OBO Edition (NCIT) has the class Social group, but it does not adhere strictly to the BFO framework and it is defined
very narrowly as: “Individuals with whom time is shared outside of employment activities” (http://purl.obolibrary.org/obo/NCIT_C18230).
By the class Social group, we instead mean a subclass of the BFO class Object aggregate and leave its rigorous characterization (e.g. group
agency [26]) for future work.
Table 2
Predicates for binary relations and their informal explanation
     Relational predicate                                  Informal explanation
      bearer_of (x,y) [10]                     x (independent continuant) is a bearer of
                                                  y (specifically dependent continuant)
    has_mod-part (x,y) [27]            x (realizable entity) has as mod-part y (realizable entity)
  member-part_of (x,y) [10]               x (object) is a member part of y (object aggregate)
   realized_in (x,y) [28][29]              x (realizable entity) can be realized in y (process)
      relies_on (x,y) [21]                   x (extrinsic disposition) relies existentially on
                                                          y (intrinsic disposition)
(Note: The references therein mean prior work from which relations are imported, although the
has_mod-part and realized_in relations are reinterpreted in our context.)

    We begin by considering gendered behavioral dispositions because gender is roughly an aggregate
of them, on our McKitrick-style view. We can define a gendered behavioral disposition as follows:

          gendered behavioral disposition =def. An extrinsic disposition to be realized in behaviors of the
          bearer that are considered gendered by a social group to which the bearer belongs.

This definition can be formalized by introducing the class Gendered considered behavior:

          Gendered behavioral disposition subClassOf [Extrinsic disposition and (realized_in only
          Gendered-considered behavior)]3

    Furthermore, we argued that every gendered behavioral disposition has as intrinsic dependee some
intrinsic behavioral disposition. We first give the following textual and logical definitions of an intrinsic
behavioral disposition:

          intrinsic behavioral disposition =def. An intrinsic disposition to be realized in behaviors of the
          bearer.

          Intrinsic behavioral disposition subClassOf [Intrinsic disposition and (realized_in only
          Behavior)]

Then, gendered behavioral dispositions can be linked with intrinsic behavioral dispositions through the
relies_on relation [21] as follows (e.g. dS2 relies_on dS1):

          Gendered behavioral disposition subClassOf (relies_on some Intrinsic Behavioral Disposition)

    Let us move onto gender. For example, Sam’s gender (say gS) is an aggregate of many gendered
behavioral dispositions (e.g. dS2) that construct together her feminine identity. We can specify the
relationship between gS and dS2 in such a way that gS has_mod-part dS2. This claim can be supported
by the observation that gS and dS2 satisfy the three axioms characterizing mod-parthood [27]:

    •      The bearer (i.e. Sam) of gS is an improper part of the bearer (i.e. Sam) of dS2.
    •      gS is realized if and only if at least one of its mod-parts (e.g. dS2) is realized in this process.
    •      gS is triggered if and only if at least one of its mod-parts (e.g. dS2) is triggered by this process.

We can generalize the finding that “gS has_mod-part dS2” to the following axiom about gender:

3
  In this paper we utilize Röhl & Jansen’s [28] account of the identity of dispositions, partly because it has the practical virtue of being
representable in the OWL, where the universal restriction (“only”) on classes is available. See, however, Barton et al.’s [29] criticism that this
“ONLY theory” of dispositions would encounter the theoretical problem of “disposition multiplicativism” (by which they mean the arbitrary
proliferation of dispositions) and their alternative “PARTHOOD framework” for dispositions, which can avoid disposition multiplicativism.
       Gender subClassOf [Extrinsic disposition and (has_mod-part some Gendered behavioral
       disposition)]

Note that, while being subclasses of BFO:Realizable entity, both classes Gendered behavioral
disposition and Gender are disjoint from BFO:Disposition.
   Finally, we propose the class Gender bearer because it is useful for biomedical ontologies. For
example, data about patients’ gender can be managed in ontologies by creating this class. On our
account, a gender bearer would be a human being that bears a gender and also a member part of a social
group. These claims can be formally represented as follows:

        Gender bearer subClassOf [Homo sapiens and (bearer_of some Gender)]
        Gender bearer subClassOf (member-part_of some Social group)

5. Discussion
5.1. Gender Identity and Gender Roles
    The Ontology of Medically Related Social Entities (OMRSE) [16] defines the term “gender role” as
follows:

          gender role =def. A human social role borne by a human being realized in behaviour which is
          considered socially appropriate for individuals of a specific sex in the context of a specific
          culture. (http://purl.obolibrary.org/obo/OMRSE_00000007)

To illustrate this with our motivating example, Sam has a male sex and her gender role can be realized
in a process of Sam going around in clothes that are considered as manly in her social group.
     As we said in Section 0, McKitrick’s [5] dispositional account of gender is motivated by her rough
distinction between gender (identity) and gender roles. However, it may not be straightforward to
distinguish sharply between gender in our proposal and gender roles in the OMRSE. Given the
hypothesis that some roles in BFO can be seen as extrinsic dispositions [21], for example, it would be
possible to think that (just as with gender) some gender roles are extrinsic dispositions that have as
mod-part some gendered behavioral disposition(s), insofar as being “considered gendered” can involve
being “considered socially appropriate for individuals of a specific sex” (despite potentially problematic
socio-ethical implications of this assumption). This means that there is room for improvement of our
characterization of gender, in particular regarding how to formalize the (ii) part of our definition of
gender (see Section 0). It would nevertheless also imply that our idea of gendered behavioral
dispositions may contribute to further clarification of the OMRSE notion of gender roles.

5.2. Linking Gender with Gender Information Entities

   We have so far focused on the very notion of gender. To optimally use the information in the medical
records to support healthcare delivery, however, it is equally important to offer an ontological
representation of informational entities that refer to sex and gender, such as the piece of information
that is involved in the value “Man” filled in the field “gender” of a clinical document [2].
    For instance, the OMRSE possesses the class Gender identity information content entity with the
definition: “A social identity information content entity that is about whether some person identifies as
some gender” (http://purl.obolibrary.org/obo/OMRSE_00000209). At present, the OMRSE does not
assert a specific axiom about this class. It is a subclass of the class Information content entity of the
OBO-compliant Information Artifact Ontology (IAO) [30] and this IAO class is in turn a subclass of
the BFO class Generically dependent continuant. Quite importantly, information content entities are
defined as bearing the IAO:is_about relation towards a portion of reality, although the notion of
aboutness will warrant further clarification (see, for thoughts, Biccheri et al.’s [31] analysis of aboutness
and Sanfilippo’s [32] discussion on a general ontology of information entities).
   Since we propose the textual and logical definitions of the class Gender, the following axiom can
be provided with regard to the aforementioned OMRSE class:

             Gender identity information content entity subClassOf (is_about some Gender)

Note that we are interpretating the OMRSE term “gender identity” rigorously, but existing healthcare
information systems may not distinguish sharply gender identity from gender roles and this could
motivate the pragmatic creation of the class, say, Gender identity or gender role information content
entity to deal with informational entities concerning gender identity and/or gender roles. Relatedly, it is
interesting to remark that, taking into account the fact that many medical records do not distinguish
between sex and gender, Fabry et al. [2] propose the class Biological sex or gender identity information
content entity as a catch-all label that encompasses sex/gender-related information entities, and this
class will be further clarified by our axiom because it is partially defined in terms of the OMRSE class
Gender identity information content entity.
    Moreover, our schema for representing gender can be extended to other social identities. McKitrick
[5] considers an objection to her dispositional account of gender: it fails to explicate well what is special
about gendered behaviors. She responds that this apparently problematic feature is an acceptable
outcome partly because it arises in many other theories of gender, including Ásta’s [14] and Butler’s
[17]. On the contrary, this discussion would indicate the interesting possibility that we may be able to
analyze other social identity entities than gender in the same fashion. In the OMRSE, the parent class
of the class Gender identity information content entity is Social identity information content entity
(http://purl.obolibrary.org/obo/OMRSE_00000204) and it has other subclasses such as Ethnic identity
information content entity, Racial identity information content entity, and Sexual orientation identity
information content entity. It will be a noteworthy line of inquiry to explore ethnic, racial and sexual
orientation identities in a McKitrick-style dispositional way and to enrich a representation of related
information content entities as found in the OMRSE.

6. Conclusion

    Sex and gender are prominent determinants of health and their accurate representation in medical
records is vital to appropriate clinical decisions. In this paper, we adopted a methodology to provide a
BFO/OBO-based analysis of gender and proposed the McKitrick[5]-style view that gender is a
behavioral and extrinsic disposition, as distinct from the BFO category of disposition. We also brief
discussed the term “gender role” in the OMRSE and gender-related informational entities.
    In the future we plan to further our ontological representation of gender. To take one example, its
elaboration will demand a systematic study of realizable entities in BFO [21], so that our notion of
gender and the OMRSE class Gender role can be well demarcated. This task can comprise, for instance,
the reconceptualization of the BFO categories of disposition and role vis-à-vis extrinsic dispositions.
Careful consideration will be also required of what we exactly mean by the term “gendered” and various
possible socio-ethical ramifications of the sex/gender-based classification of people. For pointers to this
work, we allude to a direction of study (as touched upon by McKitrick [5]) to combine a dispositional
account of gender with some elements of Haslanger[13]-style feminist theories and an endeavor to
locate our proposal in a broader framework of social ontology [33]. 4

7. References

[1] K. Buchacz, et al. Disparities in prevalence of key chronic diseases by gender and race/ethnicity
    among antiretroviral-treated HIV-infected adults in the US. Antivir Ther. 2013;18(1):65-75.
[2] P. Fabry, A. Barton, and J.-F. Ethier. An Ontology Representation of Sex and Gender Information.
    In: Proceedings of ICBO|ODLS 2020. CEUR Workshop Proceedings, vol. 2807;2020:O.1-5.
[3] F. Lau, et al. An Environmental Scan of Sex and Gender in Electronic Health Records: Analysis
    of Public Information Sources. J Med Internet Res. 2020;22(11):e20050.

4
    We thank three anonymous reviewers for their feedback. FT acknowledges financial support by the SPOR Canadian Data Platform (CIHR).
[4] WHO | Gender and Genetics [Internet]. WHO. World Health Organization. Last accessed on May
     12, 2021. URL: https://www.who.int/genomics/gender/en/index1.html.
[5] J. McKitrick. A dispositional account of gender. Philos Stud. 2015;172:2575-2589.
[6] J. F. Ethier, et al. Clinical data integration model: core interoperability ontology for research using
     primary care data. Methods Inf Med. 2015;54(1):16-23.
[7] J. F. Ethier, et al. TheTRANSFoRm project: experience and lessons learned regarding functional
     and interoperability requirements to support primary care. Learn Health Sys. 2017;e10037.
[8] B. Smith, et al. The OBO foundry: coordinated evolution of ontologies to support biomedical data
     integration. Nat Biotechnol. 2007;25(11):1251-1255.
[9] B. Smith. New desiderata for biomedical ontologies. In: K. Munn and B. Smith (Eds.), Applied
     Ontology: An Introduction. Frankfurt: Ontos Verlag, 2008, pp. 84-107.
[10] R. Arp, B. Smith, and A. D. Spear. Building Ontologies with Basic Formal Ontology. MIT Press,
     2015.
[11] B. Smith and W. Ceusters. Ontological realism: A methodology for coordinated evolution of
     scientific ontologies. Appl Ontol. 2010 Nov;5(3-4):139-188.
[12] S. de Beauvoir. The Second Sex. New York: Random House, 1989.
[13] S. Haslanger. Resisting Reality: Social Construction and Social Critique. Oxford University Press,
     2012.
[14] Ásta. Categories We Live By: The Construction of Sex, Gender, Race, and Other Social
     Categories. Oxford University Press, 2018.
[15] The World Professional Association for Transgender Health. Standards of Care for the Health of
     Transsexual, Transgender, and Gender-nonconforming people, Version 7, 2012. URL:
     https://www.wpath.org/publications/soc.
[16] A. Hicks, et al. The ontology of medically related social entities: recent developments. J Biomed
     Semantics. 2016;7:1-4.
[17] J. Butler. Gender Trouble: Feminism and the Subversion of Identity. New York: Routledge, 2006.
[18] J. McKitrick. Dispositional Pluralism. Oxford University Press, 2018.
[19] D. Marshall and B. Weatherson. Intrinsic vs. extrinsic properties. In: The Stanford encyclopedia
     of philosophy, Spring 2018. https://plato.stanford.edu/archives/spr2018/entries/intrinsic-extrinsic/
[20] C. A. Kronk and J. W. Dexheimer. Development of the Gender, Sex, and Sexual Orientation
     Ontology: Evaluation and workflow. J Am Med Inform Assoc. 2020;27:1110-1115.
[21] F. Toyoshima, A. Barton, L. Jansen and J.-F. Ethier. Towards a unified dispositional framework
     for realizable entities. In: Proceedings of FOIS2021. IOS Press, 2021. Forthcoming.
[22] N. Williams. The Powers Metaphysic. Oxford University Press, 2019.
[23] A. Barton, W. Duncan, F. Toyoshima and J.-F. Ethier. First steps towards an ontology of belief.
     In: Proceedings of JOWO2018. CEUR Workshop Proceedings, vol. 2205;2018:1-5.
[24] F. Toyoshima, A. Barton and O. Grenier. Foundations for an ontology of belief, desire and
     intention. In: Proceedings of FOIS2020. IOS Press, pp. 140-154, 2020.
[25] M. Horridge and P. F. Patel-Schneider. OWL 2 web ontology language Manchester syntax. 2nd
     ed. W3C Working Group Note 11 December 2012.
[26] D. Porello, E. Bottazzi and R. Ferrario. The ontology of group agency. In: Proceedings of
     FOIS2014. IOS Press, pp. 183-196, 2014.
[27] A. Barton, L. Jansen and J.-F. Ethier. A taxonomy of disposition-parthood. In: Proceedings of
     JOWO2017. CEUR Workshop Proceedings, vol. 2050; 2017:1-10.
[28] J. Röhl and L. Jansen. Representing dispositions. J Biomed Semant. 2011 Aug;2(Suppl 4):S4.
[29] A. Barton, O. Grenier, L. Jansen and J.-F. Ethier. The identity of dispositions. In: Proceedings of
     FOIS2018. IOS Press, pp. 113-125, 2018.
[30] B. Smith and W. Ceusters. Aboutness: Towards foundations for the information artifact ontology.
     In: Proceedings of ICBO2015. CEUR Workshop Proceedings, vol. 1515;2015:1-5.
[31] L. Biccheri, R. Ferrario, and D. Porello. Needs and intentionality: An ontological analysis and an
     application to public services. In: Proceedings of FOIS2020. IOS Press, pp. 125-139, 2020.
[32] E. M. Sanfilippo. Ontologies for information entities: State of the art and open challenges. Appl
     Ontol. 2021;16(2):111-135.
[33] J. R. Searle. The Construction of Social Reality. Simon and Schuster, 1995.