assertion  retraction  graph  subject             predicate        object              datatype    annotation
1          0           graph  obo:UBERON_0000065  rdfs:label       respiratory tract   xsd:string  
1          0           graph  obo:UBERON_0000065  oio:id           UBERON:0000065      xsd:string  
1          0           graph  obo:UBERON_0000065  rdfs:subClassOf  obo:UBERON_0004119  _IRI        
1          0           graph  obo:UBERON_0000065  rdfs:subClassOf  obo:UBERON_0001005  _IRI        
1          0           graph  obo:UBERON_0000065  rdf:type         owl:Class           _IRI