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    xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
    xmlns:ns2="http://metadb.riken.jp/db/IMPC_RDF/impress_level/"
    xmlns:ns1="http://metadb.riken.jp/db/IMPC_RDF/Impress_procedure/">
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    <ns0:has_level>
      <ns0:Impress_level rdf:about="http://metadb.riken.jp/db/IMPC_RDF/impress_level/line">
        <rdfs:label xml:lang="en">line</rdfs:label>
        <rdfs:label xml:lang="ja">ライン</rdfs:label>
      </ns0:Impress_level>
    </ns0:has_level>
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    <ns0:has_level rdf:resource="http://metadb.riken.jp/db/IMPC_RDF/impress_level/line"/>
  </rdf:Description>
  <rdf:Description rdf:about="http://metadb.riken.jp/db/IMPC_RDF/Impress_procedure/IMPC_MAA_001">
    <ns0:has_level rdf:resource="http://metadb.riken.jp/db/IMPC_RDF/impress_level/line"/>
  </rdf:Description>
  <rdf:Description rdf:about="http://metadb.riken.jp/db/IMPC_RDF/Impress_procedure/IMPC_EXD_001">
    <ns0:has_level rdf:resource="http://metadb.riken.jp/db/IMPC_RDF/impress_level/line"/>
  </rdf:Description>
  <rdf:Description rdf:about="http://metadb.riken.jp/db/IMPC_RDF/Impress_procedure/IMPC_EVL_001">
    <ns0:has_level rdf:resource="http://metadb.riken.jp/db/IMPC_RDF/impress_level/line"/>
  </rdf:Description>
  <rdf:Description rdf:about="http://metadb.riken.jp/db/IMPC_RDF/Impress_procedure/IMPC_FER_001">
    <ns0:has_level rdf:resource="http://metadb.riken.jp/db/IMPC_RDF/impress_level/line"/>
  </rdf:Description>
  <rdf:Description rdf:about="http://metadb.riken.jp/db/IMPC_RDF/Impress_procedure/IMPC_EVO_001">
    <ns0:has_level rdf:resource="http://metadb.riken.jp/db/IMPC_RDF/impress_level/line"/>
  </rdf:Description>
  <rdf:Description rdf:about="http://metadb.riken.jp/db/IMPC_RDF/Impress_procedure/IMPC_VIA_001">
    <ns0:has_level rdf:resource="http://metadb.riken.jp/db/IMPC_RDF/impress_level/line"/>
  </rdf:Description>
</rdf:RDF>