assertion  retraction  graph  subject    predicate        object    datatype  annotation
1          0           graph  DOID:5385  rdfs:subClassOf  DOID:657  _IRI      
1          0           graph  DOID:5196  rdfs:subClassOf  DOID:657  _IRI      
1          0           graph  DOID:6483  rdfs:subClassOf  DOID:657  _IRI      
1          0           graph  DOID:3172  rdfs:subClassOf  DOID:657  _IRI      
1          0           graph  DOID:5382  rdfs:subClassOf  DOID:657  _IRI