assertion  retraction  graph  subject    predicate            object                                          datatype    annotation
1          0           graph  DOID:6018  rdfs:label           adult central nervous system immature teratoma  xsd:string  
1          0           graph  DOID:6018  oio:inSubset         obo:doid#NCIthesaurus                           _IRI        
1          0           graph  DOID:6018  oio:id               DOID:6018                                       xsd:string  
1          0           graph  DOID:6018  oio:hasOBONamespace  disease_ontology                                xsd:string  
1          0           graph  DOID:6018  oio:hasDbXref        UMLS_CUI:C1332193                               xsd:string  
1          0           graph  DOID:6018  oio:hasDbXref        NCI:C27401                                      xsd:string  
1          0           graph  DOID:6018  rdfs:subClassOf      DOID:6019                                       _IRI        
1          0           graph  DOID:6018  rdfs:subClassOf      DOID:6015                                       _IRI        
1          0           graph  DOID:6018  rdf:type             owl:Class                                       _IRI