assertion  retraction  graph  subject       predicate        object     datatype    annotation
1          0           graph  DOID:3181     oio:id           DOID:3181  xsd:string  
1          0           graph  DOID:0050901  rdfs:subClassOf  DOID:3181  _IRI        
1          0           graph  DOID:3186     rdfs:subClassOf  DOID:3181  _IRI        
1          0           graph  DOID:3184     rdfs:subClassOf  DOID:3181  _IRI        
1          0           graph  DOID:3183     rdfs:subClassOf  DOID:3181  _IRI        
1          0           graph  DOID:7154     rdfs:subClassOf  DOID:3181  _IRI