assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:0081255 IAO:0000115 A posterior fossa ependymoma that arises in the posterior fossa with characteristic DNA methylation patterns including retention of nuclear H3 p.K28me3 (K27me3) expression, absence of CpG island hypermethylation, absence of global DNA hypomethylation, and absence of EZHIP overexpression. xsd:string "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://pubmed.ncbi.nlm.nih.gov/33902636/""}]}" 1 0 graph DOID:0081255 oio:id DOID:0081255 xsd:string 1 0 graph DOID:0081255 oio:hasExactSynonym Posterior Fossa Ependymoma, Group B (PFB) xsd:string 1 0 graph DOID:0081255 oio:hasDbXref NCI:C186451 xsd:string 1 0 graph DOID:0081255 oio:hasDbXref ICDO:9396/3 xsd:string 1 0 graph DOID:0081255 oio:hasOBONamespace disease_ontology xsd:string 1 0 graph DOID:0081255 oio:inSubset obo:doid#DO_cancer_slim _IRI 1 0 graph DOID:0081255 rdfs:subClassOf DOID:0080889 _IRI 1 0 graph DOID:0081255 oio:hasExactSynonym Posterior fossa group B (PFB) ependymoma xsd:string 1 0 graph DOID:0081255 rdfs:label posterior fossa group B ependymoma @en 1 0 graph DOID:0081255 rdf:type owl:Class _IRI