assertion  retraction  graph  subject             predicate        object              datatype    annotation
1          0           graph  obo:UBERON_0002075  rdfs:label       viscus              xsd:string  
1          0           graph  obo:UBERON_0002075  oio:id           UBERON:0002075      xsd:string  
1          0           graph  obo:UBERON_0002075  rdfs:subClassOf  obo:UBERON_0005177  _IRI        
1          0           graph  obo:UBERON_0002075  rdf:type         owl:Class           _IRI