assertion  retraction  graph  subject             predicate        object              datatype    annotation
1          0           graph  obo:UBERON_0034944  rdfs:label       zone of organ       xsd:string  
1          0           graph  obo:UBERON_0034944  oio:id           UBERON:0034944      xsd:string  
1          0           graph  obo:UBERON_0034944  rdfs:subClassOf  obo:UBERON_0000064  _IRI        
1          0           graph  obo:UBERON_0034944  rdf:type         owl:Class           _IRI