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    xmlns:xsd="http://www.w3.org/2001/XMLSchema#"
    xmlns:ns4="http://metadb.riken.jp/db/bioresource_schema/">
  <rdf:Description>
    <ns5:BFO_0000050>
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        <ns4:brs_indicatesStage>embryo</ns4:brs_indicatesStage>
        <ns4:brs_hasGender rdf:resource="http://purl.obolibrary.org/obo/PATO_0000384"/>
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</rdf:RDF>