assertion  retraction  graph  subject    predicate            object                                                                  datatype    annotation
1          0           graph  DOID:3620  oio:hasDbXref        SNOMEDCT_US_2023_03_01:93744007                                         xsd:string  
1          0           graph  DOID:3620  oio:inSubset         obo:doid#NCIthesaurus                                                   _IRI        
1          0           graph  DOID:3620  oio:hasDbXref        MESH:D016543                                                            xsd:string  
1          0           graph  DOID:3620  oio:hasOBONamespace  disease_ontology                                                        xsd:string  
1          0           graph  DOID:3620  IAO:0000115          A nervous system cancer that is located_in the central nervous system.  xsd:string  "{""dce:type"":[{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007638""}],""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:http://en.wikipedia.org/wiki/Central_nervous_system""}]}"