assertion  retraction  graph  subject    predicate            object                            datatype    annotation
1          0           graph  DOID:4608  rdfs:label           common bile duct neoplasm         xsd:string  
1          0           graph  DOID:4608  oio:id               DOID:4608                         xsd:string  
1          0           graph  DOID:4608  oio:hasOBONamespace  disease_ontology                  xsd:string  
1          0           graph  DOID:4608  oio:hasExactSynonym  neoplasm of common bile duct      @en         
1          0           graph  DOID:4608  oio:hasDbXref        UMLS_CUI:C0009442                 xsd:string  
1          0           graph  DOID:4608  oio:hasDbXref        SNOMEDCT_US_2023_03_01:126857009  xsd:string  
1          0           graph  DOID:4608  oio:hasDbXref        MESH:D003138                      xsd:string  
1          0           graph  DOID:4608  rdfs:subClassOf      DOID:0050625                      _IRI        
1          0           graph  DOID:4608  rdf:type             owl:Class                         _IRI