assertion  retraction  graph  subject    predicate        object                                                                                                                                                 datatype    annotation
1          0           graph  DOID:1909  rdfs:label       melanoma                                                                                                                                               xsd:string  
1          0           graph  DOID:1909  IAO:0000115      A cell type cancer that has_material_basis_in abnormally proliferating cells derives_from melanocytes which are found in skin, the bowel and the eye.  xsd:string  
1          0           graph  DOID:1909  rdfs:subClassOf  DOID:162                                                                                                                                               _IRI        
1          0           graph  DOID:1909  rdf:type         owl:Class                                                                                                                                              _IRI