assertion  retraction  graph  subject    predicate        object     datatype    annotation
1          0           graph  DOID:7491  rdfs:subClassOf  DOID:2096  _IRI        
1          0           graph  DOID:6789  rdfs:subClassOf  DOID:2096  _IRI        
1          0           graph  DOID:5313  rdfs:subClassOf  DOID:2096  _IRI        
1          0           graph  DOID:5286  rdfs:subClassOf  DOID:2096  _IRI        
1          0           graph  DOID:2096  oio:id           DOID:2096  xsd:string