assertion  retraction  graph  subject       predicate        object     datatype    annotation
1          0           graph  DOID:0081039  rdfs:subClassOf  DOID:9953  _IRI        
1          0           graph  DOID:0081038  rdfs:subClassOf  DOID:9953  _IRI        
1          0           graph  DOID:0081037  rdfs:subClassOf  DOID:9953  _IRI        
1          0           graph  DOID:0081036  rdfs:subClassOf  DOID:9953  _IRI        
1          0           graph  DOID:9953     oio:id           DOID:9953  xsd:string