assertion  retraction  graph  subject    predicate             object             datatype    annotation
1          0           graph  DOID:8007  oio:hasExactSynonym   Pancoast's tumour  @en         
1          0           graph  DOID:8007  oio:hasOBONamespace   disease_ontology   xsd:string  
1          0           graph  DOID:8007  oio:hasDbXref         NCI:C55815         xsd:string  
1          0           graph  DOID:8007  oio:hasDbXref         NCI:C27710         xsd:string  
1          0           graph  DOID:8007  oio:hasAlternativeId  DOID:4485          xsd:string