assertion  retraction  graph  subject       predicate    object                                                                                                           datatype    annotation
1          0           graph  DOID:0080854  IAO:0000115  A malignant astrocytoma that is characterized by the presence of five or more mitoses per 10 high-power fields.  xsd:string  "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://www.hindawi.com/journals/crinm/2018/6428492/""}]}"