assertion  retraction  graph  subject    predicate        object    datatype    annotation
1          0           graph  DOID:4324  rdfs:subClassOf  DOID:174  _IRI        
1          0           graph  DOID:4323  rdfs:subClassOf  DOID:174  _IRI        
1          0           graph  DOID:4322  rdfs:subClassOf  DOID:174  _IRI        
1          0           graph  DOID:4321  rdfs:subClassOf  DOID:174  _IRI        
1          0           graph  DOID:6498  rdfs:subClassOf  DOID:174  _IRI        
1          0           graph  DOID:174   oio:id           DOID:174  xsd:string