<?xml version="1.0"?>
<sparql
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:xs="http://www.w3.org/2001/XMLSchema#"
    xmlns="http://www.w3.org/2005/sparql-results#" >
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    <variable name="v1"/>
    <variable name="x2"/>
    <variable name="v2"/>
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    <result>
      <binding name="x1">
        <uri>http://example/x1</uri>
      </binding>
      <binding name="v1">
        <literal>xyz</literal>
      </binding>
      <binding name="x2">
        <uri>http://example/x2</uri>
      </binding>
      <binding name="v2">
        <literal xml:lang="en">xyz</literal>
      </binding>
    </result>
    <result>
      <binding name="x1">
        <uri>http://example/x1</uri>
      </binding>
      <binding name="v1">
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      </binding>
      <binding name="x2">
        <uri>http://example/x3</uri>
      </binding>
      <binding name="v2">
        <literal xml:lang="EN">xyz</literal>
      </binding>
    </result>
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      <binding name="x1">
        <uri>http://example/x1</uri>
      </binding>
      <binding name="v1">
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      <binding name="x2">
        <uri>http://example/x7</uri>
      </binding>
      <binding name="v2">
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      </binding>
      <binding name="v1">
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      </binding>
      <binding name="x2">
        <uri>http://example/x8</uri>
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        <uri>http://example/xyz</uri>
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    <result>
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      </binding>
      <binding name="v1">
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      </binding>
      <binding name="x2">
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      <binding name="v2">
        <literal>xyz</literal>
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      <binding name="v1">
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    <result>
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        <literal xml:lang="en">xyz</literal>
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      <binding name="x1">
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      <binding name="v2">
        <bnode>b0</bnode>
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    </result>
  </results>
</sparql>
