assertion  retraction  graph  subject    predicate        object    datatype    annotation
1          0           graph  DOID:468   rdfs:subClassOf  DOID:461  _IRI        
1          0           graph  DOID:5039  rdfs:subClassOf  DOID:461  _IRI        
1          0           graph  DOID:4310  rdfs:subClassOf  DOID:461  _IRI        
1          0           graph  DOID:461   oio:id           DOID:461  xsd:string  
1          0           graph  DOID:4044  rdfs:subClassOf  DOID:461  _IRI        
1          0           graph  DOID:2691  rdfs:subClassOf  DOID:461  _IRI