assertion  retraction  graph  subject    predicate        object     datatype    annotation
1          0           graph  DOID:5194  rdfs:subClassOf  DOID:4163  _IRI        
1          0           graph  DOID:5193  rdfs:subClassOf  DOID:4163  _IRI        
1          0           graph  DOID:4163  oio:id           DOID:4163  xsd:string  
1          0           graph  DOID:5195  rdfs:subClassOf  DOID:4163  _IRI