assertion  retraction  graph  subject       predicate        object        datatype    annotation
1          0           graph  DOID:0060117  oio:id           DOID:0060117  xsd:string  
1          0           graph  DOID:0081026  rdfs:subClassOf  DOID:0060117  _IRI        
1          0           graph  DOID:5728     rdfs:subClassOf  DOID:0060117  _IRI        
1          0           graph  DOID:1789     rdfs:subClassOf  DOID:0060117  _IRI