assertion  retraction  graph  subject    predicate        object     datatype    annotation
1          0           graph  DOID:3307  rdfs:subClassOf  DOID:3095  _IRI        
1          0           graph  DOID:3305  rdfs:subClassOf  DOID:3095  _IRI        
1          0           graph  DOID:4085  rdfs:subClassOf  DOID:3095  _IRI        
1          0           graph  DOID:3095  oio:id           DOID:3095  xsd:string