assertion  retraction  graph  subject       predicate    object                                                               datatype    annotation
1          0           graph  DOID:0080889  IAO:0000115  A high grade ependymoma that is located within the posterior fossa.  xsd:string  "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://pubmed.ncbi.nlm.nih.gov/26351223/""},{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://pubmed.ncbi.nlm.nih.gov/32502305/""}]}"