assertion  retraction  graph  subject    predicate        object    datatype    annotation
1          0           graph  DOID:9561  rdfs:subClassOf  DOID:974  _IRI        
1          0           graph  DOID:2825  rdfs:subClassOf  DOID:974  _IRI        
1          0           graph  DOID:974   oio:id           DOID:974  xsd:string  
1          0           graph  DOID:786   rdfs:subClassOf  DOID:974  _IRI        
1          0           graph  DOID:3225  rdfs:subClassOf  DOID:974  _IRI        
1          0           graph  DOID:2275  rdfs:subClassOf  DOID:974  _IRI        
1          0           graph  DOID:9155  rdfs:subClassOf  DOID:974  _IRI