assertion  retraction  graph  subject       predicate        object    datatype    annotation
1          0           graph  DOID:0050623  rdfs:subClassOf  DOID:731  _IRI        
1          0           graph  DOID:11885    rdfs:subClassOf  DOID:731  _IRI        
1          0           graph  DOID:731      oio:id           DOID:731  xsd:string  
1          0           graph  DOID:3116     rdfs:subClassOf  DOID:731  _IRI        
1          0           graph  DOID:730      rdfs:subClassOf  DOID:731  _IRI        
1          0           graph  DOID:5433     rdfs:subClassOf  DOID:731  _IRI