assertion  retraction  graph  subject       predicate        object        datatype    annotation
1          0           graph  DOID:5078     rdfs:subClassOf  DOID:0060090  _IRI        
1          0           graph  DOID:0060090  oio:id           DOID:0060090  xsd:string  
1          0           graph  DOID:8331     rdfs:subClassOf  DOID:0060090  _IRI        
1          0           graph  DOID:5393     rdfs:subClassOf  DOID:0060090  _IRI