assertion  retraction  graph  subject       predicate        object        datatype    annotation
1          0           graph  DOID:0080148  rdfs:subClassOf  DOID:0081312  _IRI        
1          0           graph  DOID:0050743  rdfs:subClassOf  DOID:0081312  _IRI        
1          0           graph  DOID:0081312  oio:id           DOID:0081312  xsd:string  
1          0           graph  DOID:5603     rdfs:subClassOf  DOID:0081312  _IRI        
1          0           graph  DOID:9953     rdfs:subClassOf  DOID:0081312  _IRI