assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:3774 IAO:0000115 A high grade glioma that is characterized by the presence of epithelioid cells which express GFAP, and mucinous stroma which contains lymphoplasmacytic infiltrates. xsd:string "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://pubmed.ncbi.nlm.nih.gov/28315998/""},{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://www.frontiersin.org/articles/10.3389/fonc.2020.00502/full""}]}"