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	<vocabIdentifier>http://digilab.ptb.de/vocab/</vocabIdentifier><term><termIdentifier>http://digilab.ptb.de/vocab/skos/40813</termIdentifier><caption>Orthogonalität</caption></term>  <relationship>      <sourceTerm>http://digilab.ptb.de/vocab/skos/40813</sourceTerm>      <targetTerm vocabIdentifier="http://digilab.ptb.de/vocab/skos/40814">Rechtwinkligkeit</targetTerm>      <relationshipType source="http://www.imsglobal.org/vocabularies/iso2788_relations.xml">UF</relationshipType>  </relationship>  <relationship>      <sourceTerm>http://digilab.ptb.de/vocab/skos/40813</sourceTerm>      <targetTerm vocabIdentifier="http://digilab.ptb.de/vocab/skos/40815">Vertikallität</targetTerm>      <relationshipType source="http://www.imsglobal.org/vocabularies/iso2788_relations.xml">UF</relationshipType>  </relationship></vdex>