assertion  retraction  graph  subject       predicate    object                                                                                                                                                                                                                                                            datatype    annotation
1          0           graph  DOID:0081254  IAO:0000115  A posterior fossa ependymoma that arises in the posterior fossa with characteristic DNA methylation patterns, including CpG island hypermethylation, global DNA hypomethylation, reduction of nuclear H3 p.K28me3 (K27me3) expression, and EZHIP overexpression.  xsd:string  "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://pubmed.ncbi.nlm.nih.gov/29909548/""}]}"