assertion  retraction  graph  subject     predicate        object     datatype  annotation
1          0           graph  DOID:471    rdfs:subClassOf  DOID:3165  _IRI      
1          0           graph  DOID:5375   rdfs:subClassOf  DOID:3165  _IRI      
1          0           graph  DOID:2173   rdfs:subClassOf  DOID:3165  _IRI      
1          0           graph  DOID:13691  rdfs:subClassOf  DOID:3165  _IRI      
1          0           graph  DOID:172    rdfs:subClassOf  DOID:3165  _IRI