assertion  retraction  graph  subject    predicate    object                                                                                            datatype    annotation
1          0           graph  DOID:5566  IAO:0000115  A teratoma that is composed exclusively of mature tissues derived from two or three germ layers.  xsd:string  "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://www.cancer.gov/publications/dictionaries/cancer-terms/def/mature-teratoma""}]}"