assertion  retraction  graph  subject       predicate            object                                                                                                    datatype    annotation
1          0           graph  DOID:0080639  rdfs:label           bone sarcoma                                                                                              xsd:string  
1          0           graph  DOID:0080639  oio:id               DOID:0080639                                                                                              xsd:string  
1          0           graph  DOID:0080639  oio:hasOBONamespace  disease_ontology                                                                                          xsd:string  
1          0           graph  DOID:0080639  rdfs:subClassOf      DOID:184                                                                                                  _IRI        
1          0           graph  DOID:0080639  rdf:type             owl:Class                                                                                                 _IRI        
1          0           graph  DOID:0080639  IAO:0000115          A bone cancer that has_material_basis_in abnormally proliferating cells derives from embryonic mesoderm.  xsd:string  "{""dce:type"":[{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007645""}],""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5805807""}]}"