assertion  retraction  graph  subject    predicate            object                    datatype    annotation
1          0           graph  DOID:6993  rdfs:label           iris mixed cell melanoma  xsd:string  
1          0           graph  DOID:6993  oio:inSubset         obo:doid#NCIthesaurus     _IRI        
1          0           graph  DOID:6993  oio:id               DOID:6993                 xsd:string  
1          0           graph  DOID:6993  oio:hasOBONamespace  disease_ontology          xsd:string  
1          0           graph  DOID:6993  oio:hasDbXref        UMLS_CUI:C1334210         xsd:string  
1          0           graph  DOID:6993  oio:hasDbXref        NCI:C6101                 xsd:string  
1          0           graph  DOID:6993  rdfs:subClassOf      DOID:6994                 _IRI        
1          0           graph  DOID:6993  rdfs:subClassOf      DOID:6992                 _IRI        
1          0           graph  DOID:6993  rdf:type             owl:Class                 _IRI