assertion  retraction  graph  subject       predicate        object        datatype    annotation
1          0           graph  DOID:0060529  rdfs:subClassOf  DOID:0040001  _IRI        
1          0           graph  DOID:0060528  rdfs:subClassOf  DOID:0040001  _IRI        
1          0           graph  DOID:0060527  rdfs:subClassOf  DOID:0040001  _IRI        
1          0           graph  DOID:0060525  rdfs:subClassOf  DOID:0040001  _IRI        
1          0           graph  DOID:0040001  oio:id           DOID:0040001  xsd:string