assertion  retraction  graph  subject    predicate    object                                                                                datatype    annotation
1          0           graph  DOID:6774  IAO:0000115  An ovarian primitive germ cell tumor that is dominantly composed of embryoid bodies.  xsd:string  "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://en.wikipedia.org/wiki/Polyembryoma""}]}"