assertion  retraction  graph  subject             predicate        object                datatype    annotation
1          0           graph  obo:UBERON_0004122  rdfs:label       genitourinary system  xsd:string  
1          0           graph  obo:UBERON_0004122  oio:id           UBERON:0004122        xsd:string  
1          0           graph  obo:UBERON_0004122  rdfs:subClassOf  obo:UBERON_0000467    _IRI        
1          0           graph  obo:UBERON_0004122  rdf:type         owl:Class             _IRI