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    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>host</TAG>
        <VALUE>piglets</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation_source</TAG>
        <VALUE>faecal sample</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2017-07-13</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>not collected</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="HF_15" accession="SRS4110236">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS4110236</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN10523235</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>faecal swabs</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>1510822</TAXON_ID>
      <SCIENTIFIC_NAME>pig gut metagenome</SCIENTIFIC_NAME>
    </SAMPLE_NAME>
    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>508459</ID>
          <LABEL>PRJNA508459</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>host</TAG>
        <VALUE>piglets</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>isolation_source</TAG>
        <VALUE>faecal sample</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2017-07-13</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>lat_lon</TAG>
        <VALUE>not collected</VALUE>
      </SAMPLE_ATTRIBUTE>
      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="HF_13" accession="SRS4110237">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS4110237</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN10523233</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>faecal swabs</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>1510822</TAXON_ID>
      <SCIENTIFIC_NAME>pig gut metagenome</SCIENTIFIC_NAME>
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    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>508459</ID>
          <LABEL>PRJNA508459</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>host</TAG>
        <VALUE>piglets</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>isolation_source</TAG>
        <VALUE>faecal sample</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2017-07-13</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
      </SAMPLE_ATTRIBUTE>
    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="HF_12" accession="SRS4110238">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS4110238</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN10523232</EXTERNAL_ID>
    </IDENTIFIERS>
    <TITLE>faecal swabs</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>1510822</TAXON_ID>
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    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>508459</ID>
          <LABEL>PRJNA508459</LABEL>
        </XREF_LINK>
      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>host</TAG>
        <VALUE>piglets</VALUE>
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        <TAG>isolation_source</TAG>
        <VALUE>faecal sample</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2017-07-13</VALUE>
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        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
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    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="03FV22" accession="SRS4110239">
    <IDENTIFIERS>
      <PRIMARY_ID>SRS4110239</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioSample">SAMN10523206</EXTERNAL_ID>
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    <TITLE>faecal swabs</TITLE>
    <SAMPLE_NAME>
      <TAXON_ID>1510822</TAXON_ID>
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    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
          <DB>bioproject</DB>
          <ID>508459</ID>
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      </SAMPLE_LINK>
    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
        <TAG>host</TAG>
        <VALUE>piglets</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>isolation_source</TAG>
        <VALUE>faecal sample</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>collection_date</TAG>
        <VALUE>2017-04-06</VALUE>
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        <TAG>geo_loc_name</TAG>
        <VALUE>missing</VALUE>
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      <SAMPLE_ATTRIBUTE>
        <TAG>BioSampleModel</TAG>
        <VALUE>Metagenome or environmental</VALUE>
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    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
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      <PRIMARY_ID>SRS4110240</PRIMARY_ID>
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    <TITLE>faecal swabs</TITLE>
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    <SAMPLE_LINKS>
      <SAMPLE_LINK>
        <XREF_LINK>
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          <ID>508459</ID>
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    </SAMPLE_LINKS>
    <SAMPLE_ATTRIBUTES>
      <SAMPLE_ATTRIBUTE>
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        <VALUE>piglets</VALUE>
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        <TAG>isolation_source</TAG>
        <VALUE>faecal sample</VALUE>
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      <SAMPLE_ATTRIBUTE>
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      <SAMPLE_ATTRIBUTE>
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        <VALUE>Metagenome or environmental</VALUE>
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    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="03FV03" accession="SRS4110241">
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      <PRIMARY_ID>SRS4110241</PRIMARY_ID>
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    <TITLE>faecal swabs</TITLE>
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      <PRIMARY_ID>SRS4110243</PRIMARY_ID>
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    </SAMPLE_ATTRIBUTES>
  </SAMPLE>
  <SAMPLE alias="03FV13" accession="SRS4110250">
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      <PRIMARY_ID>SRS4110250</PRIMARY_ID>
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    </IDENTIFIERS>
    <TITLE>faecal swabs</TITLE>
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      <SAMPLE_LINK>
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          <DB>bioproject</DB>
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    </SAMPLE_LINKS>
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  </SAMPLE>
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      <PRIMARY_ID>SRS4110251</PRIMARY_ID>
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      <PRIMARY_ID>SRS4110252</PRIMARY_ID>
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    <TITLE>faecal swabs</TITLE>
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      <SAMPLE_LINK>
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      <PRIMARY_ID>SRS4110253</PRIMARY_ID>
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      <PRIMARY_ID>SRS4110255</PRIMARY_ID>
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