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<article xmlns:xlink="http://www.w3.org/1999/xlink">
  <front>
    <journal-meta />
    <article-meta>
      <title-group>
        <article-title>Biomining as an Effective Mechanism for Utilizing the Bioenergy Potential of Processing Enterprises in the Agricultural Sector</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <string-name>Vladyslav Malinov</string-name>
          <email>vladyslav1995@gmail.com</email>
          <xref ref-type="aff" rid="aff0">0</xref>
          <xref ref-type="aff" rid="aff1">1</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Viktoriia Zhebka</string-name>
          <email>viktoria_zhebka@ukr.net</email>
          <xref ref-type="aff" rid="aff1">1</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Oksana Zolotukhina</string-name>
          <email>zolotukhina.oks.a@gmail.com</email>
          <xref ref-type="aff" rid="aff1">1</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Tamara Franchuk</string-name>
          <email>franchuk_t@knute.edu.ua</email>
          <xref ref-type="aff" rid="aff2">2</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Vitalii Chubaievskyi</string-name>
          <email>chubaievskyi_vi@knute.edu.ua</email>
          <xref ref-type="aff" rid="aff2">2</xref>
        </contrib>
        <aff id="aff0">
          <label>0</label>
          <institution>National University of Food Technologies</institution>
          ,
          <addr-line>68 Volodymyrska str., Kyiv, 01601</addr-line>
          ,
          <country country="UA">Ukraine</country>
        </aff>
        <aff id="aff1">
          <label>1</label>
          <institution>State University of Telecommunications</institution>
          ,
          <addr-line>7 Solomenskaya str., Kyiv, 03110</addr-line>
          ,
          <country country="UA">Ukraine</country>
        </aff>
        <aff id="aff2">
          <label>2</label>
          <institution>State University of Trade and Economics</institution>
          ,
          <addr-line>19 Kyoto str., Kyiv, 02156</addr-line>
          ,
          <country country="UA">Ukraine</country>
        </aff>
      </contrib-group>
      <fpage>223</fpage>
      <lpage>230</lpage>
      <abstract>
        <p>The article offers a comprehensive overview of global bioenergy, especially biofuel production, and its potential, including different feedstock sources, technological pathways, financing, and trade. The impact on food production, the environment, and land requirements is also discussed. It concludes that increased use of biofuels is inevitable and that international cooperation, regulations, certification mechanisms, and sustainability criteria should be established to address land use and mitigate the environmental impacts of biofuel production. The result of replacing traditional animal feeds with biofuel by-products on the land use of feedstocks is also considered.</p>
      </abstract>
      <kwd-group>
        <kwd>1 Bioenergy</kwd>
        <kwd>economy</kwd>
        <kwd>agriculture</kwd>
        <kwd>renewable energy</kwd>
        <kwd>cryptocurrency</kwd>
        <kwd>biomining</kwd>
        <kwd>generating bitcoins</kwd>
        <kwd>finance</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body>
    <sec id="sec-1">
      <title>1. Introduction</title>
      <p>
        Rising prices and the environmental impact of
fossil fuels have driven biofuel production to
unprecedented levels over the past 15 years.
Given the growing need for land for biofuel
production, assessing the impact that large-scale
biofuel production can have on food and the
environment is of considerable importance [
        <xref ref-type="bibr" rid="ref1 ref5">1–4</xref>
        ].
      </p>
      <p>
        Agriculture is facing some major interrelated
challenges in ensuring food security at a time of
increasing pressure from population growth,
changing consumption patterns, food preferences,
and post-harvest losses. At the same time, there
are growing opportunities and demands for the use
of biomass to provide additional renewable
energy, heat and fuel, pharmaceuticals, and green
chemical feedstocks. Biomass from cellulosic
bioenergy crops is expected to play a significant
role in future energy systems. However, the global
potential of bioenergy is limited because all land
is multifunctional, land is also needed for food,
feed, wood, and fiber production, as well as for
nature conservation and climate protection [
        <xref ref-type="bibr" rid="ref6 ref7 ref8 ref9">5–8</xref>
        ].
      </p>
      <p>
        Analysis of recent research and publications.
Domestic and foreign scientists are studying the
issues of the impact of bioenergy on food, energy,
and the environment. In particular, it is worth
noting the works of P. Lamers, K. Hamelink, M.
Junginger [
        <xref ref-type="bibr" rid="ref10">9</xref>
        ], R. Ivanukh, S. Dusanovsky, and E.
Bilan [
        <xref ref-type="bibr" rid="ref11 ref4">10</xref>
        ].
      </p>
    </sec>
    <sec id="sec-2">
      <title>2. Research Results</title>
      <p>Natural capitalism can help overcome the
deficits of work and hope, security and
satisfaction by reversing the interconnected losses
of resources, money, and people. Firms that
reduce their non-productive tons, liters, and
kilowatt-hours can provide more and better jobs
for more people. Countries that shift taxation from
income to work and from depletion and pollution
will need less tax revenue to compensate both
families and nature [10, p. 2–4].</p>
      <p>Therefore, the following definition arises,
when studying the processing enterprises of the
agro-industrial complex, which have biological
material—production waste, it can be used
properly, considering the term “Bioenergy”.</p>
      <p>
        For a deeper disclosure of the content of the
studied concept, it is important to define the
categories of “bioenergy” and “potential”.
Researchers in different fields of science interpret
the term “bioenergy” in different ways. Thus, in
the ecological sense, bioenergy is understood as
the use of biomass energy (organic matter
produced by photosynthesis) [
        <xref ref-type="bibr" rid="ref12">11</xref>
        ].
      </p>
      <p>M. V. Dubinina proposes to consider
bioenergy as a new sector of the economy that
links the solution to the problems of obtaining fuel
from biomass and environmental protection
[12, p.32].</p>
      <p>In the technical sense, bioenergy is considered
a branch of energy based on the production of
energy sources from biomass through its technical
processing.</p>
      <p>Bioenergy is the use of energy from biomass
(organic matter produced by photosynthesis).
“Green fuel” is sometimes referred to as a
plantbased fuel, the raw material for which is biomass.
However, the more people talk about bioenergy,
the more often the term “biofuels” is understood
as liquid biofuels (biodiesel, bioethanol, and
methanol) and forget about solid and gaseous
biofuels, such as biogas, synthesis gas, pyrolysis
liquids, agricultural and household waste, and
wood residues. It is energy plants grown for
energy or fuel that will compete with gas and
diesel shortly. They include food plants (wheat
and sugar cane) and non-food plants (energy
willow, poplar and perennial grasses, rapeseed,
soybeans, sunflower, corn, flax, etc.).</p>
      <p>Biomass as an energy source can be used in the
process of direct combustion of wood, straw, and
sapropel (organic bottom sediments), as well as in
processed form as liquid (rapeseed oil esters,
alcohols) or gaseous (biogas) fuel. The conversion
of biomass into energy carriers can take place
through physical, chemical, and biological
methods; the latter is the most promising.</p>
      <p>It can be argued that bioenergy is a choice that
has a global perspective for the further successful
development of civilization. Overcoming current
and preventing future environmental crises is not
possible without the use of the latest
ecobiotechnologies for wastewater treatment,
biosorption of heavy metals from wastewater,
neutralization of hazardous gas emissions, oxygen
enrichment, use of promising means of solid and
liquid industrial waste disposal, biodegradation of
pesticides and insecticides, increasing the
efficiency of biological remediation of
contaminated soils, replacement of several
agrochemicals with biotechnological products,
etc.</p>
      <p>At the moment, while decisions are being
made in Ukraine and around the world on
strategies for using bioenergy from agricultural
waste, there is a need for a quick response, so we
will consider generating electricity from waste
processing and further using electricity for
cryptocurrency mining, and for this purpose, we
will get acquainted and learn what
cryptocurrencies are.</p>
      <p>
        Bitcoin is a peer-to-peer digital decentralized
cryptocurrency created by a person under the
pseudonym Satoshi Nakamoto. It is the first
digital decentralized currency. Several developers
and organizations have researched the importance
of digital cryptocurrency and the blockchain
concept. It is believed that Bitcoin is one of the
safe and convenient payment methods that can be
used in the coming days. The basis of Bitcoin
mining is the concept of blockchain, which is
considered one of the brilliant inventions of this
century. A blockchain is a set of blocks that are
interconnected in such a way that the hash of the
previous block is contained in the current block.
Any change in the information in any blocks in the
blockchain will lead to an error in the entire
blockchain. Bitcoins are generated through a
process called mining, where miners solve a
complex mathematical puzzle. Miners compete
with each other to mine bitcoins as quickly as
possible and receive a reward [
        <xref ref-type="bibr" rid="ref14">13</xref>
        ].
      </p>
      <p>Bitcoin mining requires very high computing
power. Since miners solve complex mathematical
puzzles using hardware, they must be fast to be the
first to solve a block. A miner who successfully
solves a block receives a bitcoin. Mining can be
done by a single person or a pool when a bunch of
miners join a network to mine a single block.
Single mining also called solo mining, is
challenging because the complexity of mining
bitcoins is increasing every day. Pool mining is
another option for those with fewer mining
resources.</p>
      <p>
        Bitcoin (also known as BTC) is a
cryptocurrency created by Satoshi Nakamoto and
released in 2009 [
        <xref ref-type="bibr" rid="ref15">14</xref>
        ]. Satoshi Nakamoto is not the
real name of the creator of Bitcoin; instead, it is a
pseudonym. Bitcoin is a distributed,
decentralized, peer-to-peer virtual
cryptocurrency. Because Bitcoin is a virtual
cryptocurrency, it does not have any shape or size
like the currencies we use today and is stored in
Bitcoin wallets created to store virtual currencies.
Bitcoins can be transferred to each other using a
bitcoin address. Since its inception, it has grown
in both popularity and use. There are three
different ways to get bitcoins. One way is to buy
them on an exchange, which is a process of
converting local currency into bitcoin. Another
way is to get it from Bitcoin ATMs, which are
installed in several places around the world, and
another is to mine them. The main protocol
underlying Bitcoin is the blockchain, which is a
truly innovative invention of this century. Bitcoin
is created through a process called mining [
        <xref ref-type="bibr" rid="ref15">14</xref>
        ].
People who mine Bitcoin are called miners. The
Bitcoin network is managed and protected by
miners. Bitcoins can be used as a substitute for
physical money in terms of buying and selling
goods. It can be bought, sold, and even exchanged
for other physical currencies.
      </p>
      <p>Since the introduction of Bitcoin in 2009, it has
attracted the attention of many sectors, mainly
focused on business, industry, and academia. With
a market capitalization of $88,604,642,423 and
over 300,712 total confirmed transactions per day
(March 2019), Bitcoin is considered the most
successful cryptocurrency to date.</p>
      <p>
        With the advent of Bitcoin and the technology
behind it come huge opportunities that are being
explored by different people in different sectors,
such as consumers, developers, marketers, etc.
Many organizations have started working on
mining Bitcoin, which serves as a virtual currency
as a replacement for fiat currencies. Several
countries, including the United States, Japan,
China, and Australia, have started using Bitcoin as
a payment method in restaurants and shops [
        <xref ref-type="bibr" rid="ref16">15</xref>
        ].
The method of generating new bitcoins is known
as bitcoin mining. Since the number of bitcoins is
limited (21 million), the number of bitcoins left
for mining is decreasing every day. At the
moment, approximately 17.7 million bitcoins
have been mined and 3.5 million bitcoins remain
to be mined. The motivation to learn more about
Bitcoin and the technical aspect of Bitcoin
generation is evolving from the ever-growing
interest of people in Bitcoin and its
implementation in various sectors.
      </p>
      <p>Bitcoin mining is the process of generating
bitcoins by solving a complex mathematical
puzzle using hardware. Individuals refer to miners
as the Bitcoin secure network. Bitcoin mining
requires hardware. Over time, miners use different
types of hardware to mine Bitcoin blocks.
Initially, bitcoin mining was done with a CPU,
and within a year, the hardware changed to GPUs,
FPGAs, and ASICs.</p>
      <p>Having studied the two concepts of bioenergy
and mining, we introduced a new concept, namely
“biomining”, i.e. by processing the outputs of
enterprises and obtaining biogas, which is burned
to produce electricity, which we use for
equipment adapted for mining.</p>
      <p>Biomining is the process of generating bitcoins
by solving a complex mathematical puzzle with
the help of hardware powered by clean energy
using biomass, i.e. organic matter produced by
photosynthesis (Fig. 1).</p>
      <p>The main conclusion is that the concept of
“biomining” is used and described for the first
time. The main task in the study of this topic, most
scientists proceeded from the paradigm of using
subsidies from the state at the expense of the green
tariff, reducing CO2 emissions from waste
processing, and selling improved fertilizers, our
study proves that with the proper use of modern
technologies and the correct use of the available
resource, it is possible to become a center for the
extraction of cryptocurrencies through biomining
and increase the country’s GDP by selling crypto
coins on exchanges.</p>
      <p>Based on a study of 20 companies that use
biogas processed from waste from processing
plants to generate electricity, 303.6 million kW of
electricity was produced in 2021 alone, which was
sold to the grid and received about €36 million in
subsidies from the state for €0.12 per kWh. Using
the generated electricity, it was possible to realize
Bitcoin cryptocurrency mining, based on the
capacities of enterprises, the number of assists
required for Bitcoin mining is more than 10
thousand units, and the result obtained from
mining during 2021 would be as follows:</p>
      <p>Based on a study of 20 enterprises that use
biogas processed from waste from processing
plants to generate electricity, a significant amount
of electricity was produced in 2021. According to
the study, a total of 303.6 million kW of electricity
was produced from biogas and sold to the grid.
These companies also received about €36 million
in subsidies from the state for €0.12 per kWh.</p>
      <p>The electricity produced was used for various
purposes, including mining the cryptocurrency
Bitcoin. Based on the capacity of the enterprises,
bitcoin mining could be realized using more than
10 thousand devices. This is a significant amount
of computing power required for Bitcoin mining.</p>
      <p>The result obtained from mining during 2021
will depend on various factors, such as the
complexity of mining, the price of bitcoin, and the
cost of electricity. However, assuming a constant
level of difficulty, it is possible to calculate the
approximate number of bitcoins that could be
mined using the electricity generated. Based on
the current price of bitcoin and the estimated cost
of electricity, the revenue from bitcoin mining
would be approximately 93 million euros.</p>
      <p>This is a significant amount of income that can
be generated using electricity produced from
biogas. In addition, this revenue can be used to
offset the costs of implementing a biomining
system, which can be a significant investment for
businesses. This provides additional economic
benefits for enterprises, making biomining an
attractive technology for utilizing bioenergy
potential.</p>
      <p>Thus, the study emphasizes the potential of
biomining as an effective mechanism for utilizing
the bioenergy potential of processing enterprises
in the agricultural sector. The use of electricity
generated from biogas for Bitcoin mining is an
innovative application of this technology that can
bring significant income to enterprises. Although
there are challenges to be overcome, the potential
benefits of biomining make it worth further
exploration.</p>
      <p>Based on a study of 20 enterprises that use
biogas processed from waste from processing
plants to generate electricity, 303.6 million kW of
electricity was produced in 2021 alone, which was
sold to the grid and received about €36 million in
subsidies from the state for €0.12 per kWh. Using
the generated electricity, it was possible to realize
the mining of the Bitcoin cryptocurrency, based
on the capacities of the enterprises, the number of
Bitcoin miners required for Bitcoin mining is
more than 10 thousand units, and the result
obtained from mining during 2021 would be as
follows:
• At a Bitcoin price of 40.2 thousand euros
as of January 2022—received more than 119
million euros from mining.
• At a bitcoin price of 20.1 thousand euros
as of May 2022, we received more than 59
million euros from mining.</p>
      <p>If these operations are taxed at 5% and 1.5%
tax rates, the first option will amount to 7.7
million euros, and the second option will amount
to 3.8 million euros, respectively, of state budget
revenues. Thus, based on our dissertation
research, we have developed an effective
mechanism for utilizing the bioenergy potential of
processing enterprises, which results in a
weakening of the receipt of budget funds under
the green tariff, and vice versa, additional
revenues to the state budget. This mechanism can
be used for producers of solar energy, and wind
energy, as well as the construction of new biogas
plants, resulting in the end product of electricity
that will be used for cryptocurrency mining.</p>
      <p>Let’s consider a correlation model between
sales to the general grid under the green tariff and
cryptocurrency mining—number of mining
nodes—bitcoin value.</p>
      <p>Developing a correlation model between
investment and various variables related to the
biomining industry can provide insight into the
potential benefits of this technology for
businesses. In this study, we examine the
correlation between investment and five variables
related to biomining technology, including the
green tariff, cryptocurrency production at
different bitcoin prices, electricity production, and
the number of ASICs (Table 1).
Teofipol Energy</p>
      <p>Company LLC
Vinnytsia Poultry</p>
      <p>Farm LLC
Korsun Eco Energy</p>
      <p>LLC
PJSC Oril leader</p>
      <p>Gorodische
Pustovarivske LLC
LLC Agrofirma im</p>
      <p>Chkalova
LLC
JózefoNikolaivska
bioenergy
Clear Energy
Odesa LLC</p>
      <p>LNK LLC
Clear Energy LLC</p>
      <p>Clear Energy</p>
      <p>Kherson LLC
Biogas Ukraine</p>
      <p>LLC
Komertsbudplast</p>
      <p>LLC</p>
      <p>Clear Energy
Kremenchuk LLC</p>
      <p>Lancast LLC
Energo Sich LLC</p>
      <p>Clear Energy
Chernihiv LLC</p>
      <p>Tis Eco LLC
AEO Energy LLC
PJSC Ecoprod</p>
      <p>Total
Teofipol Energy
Company LLC</p>
      <p>Investments (Y)
40,00
27,00
18,00
15,00
12,90
12,30
11,00
8,00</p>
      <p>The first variable under consideration is the
green tariff, which is the price at which
companies can sell electricity generated from
biogas to the grid. The second and third
variables are cryptocurrency mining at different
bitcoin prices, such as 20.1 thousand euros in
May 2022 and 40.2 thousand euros in January
2022. The fourth variable is electricity
production in millions of kW in 2021, which is
the amount of electricity generated by
enterprises using biomining technology. The
fifth variable is the number of ASICs in
millions, representing the amount of computing
power used for cryptocurrency mining.</p>
      <p>To develop the correlation model, data were
collected from several businesses that use
biomining technology, including investment in
the technology, green tariff, cryptocurrency
mining data, electricity production, and the
number of ASICs. A correlation analysis was
32,79
22,43
14,88
12,65
10,64
10,13
9,07
6,64
conducted to determine the strength and
direction of the relationship between these
variables.</p>
      <p>The results of the correlation analysis
showed a positive correlation between
investment and the green tariff. This indicates
that as the green tariff increases, the amount of
investment in biomining technology increases.
This can be explained by the fact that a higher
feed-in tariff provides greater revenue potential
for enterprises.</p>
      <p>In addition, there is a positive correlation
between investment and cryptocurrency
production at different bitcoin prices. This
indicates that as the value of Bitcoin increases,
so does the amount of investment in biomining
technology. This can be explained by the fact
that a higher Bitcoin price provides greater
revenue potential for businesses.</p>
      <p>In addition, there is a positive correlation
between investment and electricity production.
This indicates that as the amount of electricity
produced by companies using biomining
technology increases, the amount of investment
in this technology also increases. This can be
explained by the fact that more electricity
production provides greater revenue potential
for enterprises.</p>
      <p>Finally, there is a positive correlation
between investment and the number of ASICs.
This indicates that as the amount of computing
power used for cryptocurrency mining
increases, the amount of investment in
biomining technology increases. This can be
explained by the fact that more ASICs provide
more revenue potential for enterprises.</p>
      <p>A regression model is an important tool in
statistical data analysis that allows you to find
out the relationship between a dependent
variable and one or more independent variables.
In this model, the dependent variable is
considered to be the result of a function of the
independent variables (Tables 2–4).</p>
      <p>In this context, the multiple coefficients of
determination R-squared allow us to determine
how well the model fits the data. This
coefficient can be in the range from 0 to 1,
where a value of 1 indicates a perfect fit of the
model to the data. In this case, the R-squared
with a value of 0.9916499 indicates the high
adequacy of the regression model.</p>
      <p>In addition, the normalized R-squared
indicates that the model fits the data when there
is more than one independent variable. The
value of 0.991186005 indicates the high quality
of the model, which depends on the
correspondence of the independent variables to
the real data.</p>
      <p>The standard error reflects the accuracy of
the model, which can be estimated using the
standard errors of the regression. This value of
0.90495824 can be used to find a confidence
interval and to compare different regression
models.</p>
      <p>The number of observations (20) is also
important to determine the accuracy and fit of
the model to the data. To summarize, a
regression model is a powerful tool for
analyzing the relationship between variables
and can be used to predict future values of a
dependent variable based on known values of
independent variables. The results obtained
from a regression model can be used to develop
management and decision-making strategies.</p>
      <p>In a regression model, two types of variables
are usually used: dependent and independent. A
dependent variable is a quantity that is to be
predicted or estimated, while independent
variables are quantities that can influence the
dependent variable.</p>
      <p>The most common form of the regression
model is linear regression, where the dependent
variable is assumed to be a linear function of the
independent variables. In this case, the values of
the regression model parameters are determined
by the least squares method, which involves
finding the parameters that minimize the sum of
the squared deviations between the observed
and predicted values of the dependent variable.</p>
      <p>Analysis of variance is a statistical analysis
method that allows you to evaluate the influence
of factors on a variable by comparing the mean
values. The table below shows the results of an
analysis of variance for a model consisting of
regression and residuals.</p>
      <p>The results of the analysis of variance showed
that the regression model has one degree of
freedom and a Sum of Squares (SS) value of
1750.637611. The residual model has 18 degrees
of freedom and an SS value of 14.74108948. The
total SS for the model is 1765.3787, which is the
sum of the SS for the regression and the residuals.</p>
      <p>The F-statistic was used to assess the statistical
significance of the regression. The F-value is
2137.66269, which is the result of dividing the
regression Mean Square (MS) by the residuals
MS. The F-statistic value is very small
(3.67399E20), which indicates that the regression model is
statistically significant, i.e., there is a statistically
significant effect of the regression factor on the
dependent variable.</p>
    </sec>
    <sec id="sec-3">
      <title>3. Conclusions</title>
      <p>The role of renewables continues to be the
fastest-growing energy source in the global
energy mix. Shortly, global renewable electricity
production will surpass natural gas production.
Increasing population density, combined with
changing habits in developing countries towards
high-quality food, is projected to increase demand
for food production by 60% by 2050. The need to
increase agricultural productivity and efficiency
in developing countries is now widely recognized.
More sustainable food production requires crops
that make better use of limited resources,
including land, water, and fertilizers. The
comparison between high-input agriculture,
which cannot be sustained, and agroecology is not
helpful at all, as it is no longer the point of the
discussion. The point is whether existing
knowledge of agroecological practices can
achieve these yield growth rates, and if not,
whether investments in research and innovation
that focus on this stream of practices rather than
intensification can help achieve them.</p>
      <p>Globally, advanced biofuel capacity is
expected to expand only slowly, although the first
commercial plants in the United States and Europe
have recently come online. While the United
States should remain the largest producer,
technical and economic challenges associated
with blending more than 10% ethanol into the
gasoline base create uncertainty about the outlook.
In Brazil, more optimistic sugarcane harvesting
conditions and new government support measures
should help further growth, although the ethanol
sector still faces financial difficulties. High
feedstock prices and low margins continue to
challenge biofuel producers in Europe.</p>
      <p>In conclusion, the correlation model developed
in this study provides insight into the relationship
between investment and various variables related
to the biomining industry. The results show that
there is a strong positive correlation between these
variables, which emphasizes the potential benefits
of biomining technology for businesses. Further
research is needed to confirm these findings and
develop more accurate predictive models.</p>
      <p>However, it is worth noting that a regression
model may not be sufficient to describe all the
dependencies between variables and may
underestimate the effects of a large number of
independent variables or an incorrect choice of
variables included in the model. However, by
using variance analysis and other methods, it is
possible to improve the accuracy of the regression
model and provide more accurate results.</p>
      <p>Thus, the analysis of variance allowed us to
estimate the statistical significance of the
regression model and proved that the regression
factor has a statistically significant effect on the
dependent variable.</p>
    </sec>
    <sec id="sec-4">
      <title>4. References</title>
    </sec>
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