assertion  retraction  graph  subject     predicate    object                                                                                                   datatype    annotation
1          0           graph  DOID:10054  IAO:0000115  A skin melanoma that is characterized by a lack of melanin pigment in most of the melanoma tumor cells.  xsd:string  "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://dermnetnz.org/topics/amelanotic-melanoma/""}]}"