assertion  retraction  graph  subject       predicate        object     datatype    annotation
1          0           graph  DOID:0081417  rdfs:subClassOf  DOID:3302  _IRI        
1          0           graph  DOID:3302     oio:id           DOID:3302  xsd:string  
1          0           graph  DOID:4153     rdfs:subClassOf  DOID:3302  _IRI        
1          0           graph  DOID:4152     rdfs:subClassOf  DOID:3302  _IRI        
1          0           graph  DOID:4151     rdfs:subClassOf  DOID:3302  _IRI