assertion  retraction  graph  subject    predicate        object     datatype    annotation
1          0           graph  DOID:4787  rdfs:subClassOf  DOID:3200  _IRI        
1          0           graph  DOID:6337  rdfs:subClassOf  DOID:3200  _IRI        
1          0           graph  DOID:3200  oio:id           DOID:3200  xsd:string  
1          0           graph  DOID:3199  rdfs:subClassOf  DOID:3200  _IRI