assertion  retraction  graph  subject    predicate        object     datatype    annotation
1          0           graph  DOID:6115  rdfs:subClassOf  DOID:6112  _IRI        
1          0           graph  DOID:6114  rdfs:subClassOf  DOID:6112  _IRI        
1          0           graph  DOID:6113  rdfs:subClassOf  DOID:6112  _IRI        
1          0           graph  DOID:4584  rdfs:subClassOf  DOID:6112  _IRI        
1          0           graph  DOID:6112  oio:id           DOID:6112  xsd:string