assertion  retraction  graph  subject       predicate    object                                                                                                                                                                              datatype    annotation
1          0           graph  DOID:0080906  IAO:0000115  A central nervous system neuroblastoma that is characterized by FOXR2 activation and that is composed of small, round cells with hyperchromatic nuclei surrounded by a clear halo.  xsd:string  "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://link.springer.com/article/10.1007%2Fs10014-020-00370-2""},{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7350623/""}]}"