assertion  retraction  graph  subject   predicate            object                         datatype    annotation
1          0           graph  DOID:961  rdfs:label           neurofibroma of the esophagus  xsd:string  
1          0           graph  DOID:961  oio:inSubset         obo:doid#NCIthesaurus          _IRI        
1          0           graph  DOID:961  oio:id               DOID:961                       xsd:string  
1          0           graph  DOID:961  oio:hasOBONamespace  disease_ontology               xsd:string  
1          0           graph  DOID:961  oio:hasDbXref        UMLS_CUI:C1333463              xsd:string  
1          0           graph  DOID:961  oio:hasDbXref        NCI:C5704                      xsd:string  
1          0           graph  DOID:961  rdfs:subClassOf      DOID:962                       _IRI        
1          0           graph  DOID:961  rdfs:subClassOf      DOID:5041                      _IRI        
1          0           graph  DOID:961  rdf:type             owl:Class                      _IRI