assertion  retraction  graph  subject       predicate        object     datatype    annotation
1          0           graph  DOID:0080876  rdfs:subClassOf  DOID:3078  _IRI        
1          0           graph  DOID:0081304  rdfs:subClassOf  DOID:3078  _IRI        
1          0           graph  DOID:0080875  rdfs:subClassOf  DOID:3078  _IRI        
1          0           graph  DOID:3078     oio:id           DOID:3078  xsd:string