assertion  retraction  graph  subject    predicate            object                          datatype    annotation
1          0           graph  DOID:8303  rdfs:label           congenital granular cell tumor  xsd:string  
1          0           graph  DOID:8303  oio:id               DOID:8303                       xsd:string  
1          0           graph  DOID:8303  oio:hasOBONamespace  disease_ontology                xsd:string  
1          0           graph  DOID:8303  rdfs:subClassOf      DOID:3350                       _IRI        
1          0           graph  DOID:8303  rdfs:subClassOf      DOID:0080015                    _IRI        
1          0           graph  DOID:8303  rdf:type             owl:Class                       _IRI