assertion  retraction  graph  subject             predicate        object              datatype    annotation
1          0           graph  obo:UBERON_0010371  rdfs:label       ecto-epithelium     xsd:string  
1          0           graph  obo:UBERON_0010371  oio:id           UBERON:0010371      xsd:string  
1          0           graph  obo:UBERON_0010371  rdfs:subClassOf  obo:UBERON_0004121  _IRI        
1          0           graph  obo:UBERON_0010371  rdfs:subClassOf  obo:UBERON_0000483  _IRI        
1          0           graph  obo:UBERON_0010371  rdf:type         owl:Class           _IRI