assertion  retraction  graph  subject    predicate        object     datatype    annotation
1          0           graph  DOID:6034  rdfs:subClassOf  DOID:5262  _IRI        
1          0           graph  DOID:6033  rdfs:subClassOf  DOID:5262  _IRI        
1          0           graph  DOID:5262  oio:id           DOID:5262  xsd:string  
1          0           graph  DOID:5261  rdfs:subClassOf  DOID:5262  _IRI