assertion  retraction  graph  subject    predicate    object                                                                                                                                                                                                                                          datatype    annotation
1          0           graph  DOID:6621  IAO:0000115  A brain angioma that is characterized by vascular abnormalities that develops from cranial and spinal blood vasculature, has_material_basis_in abnormally proliferating cells, derives_from endothelial cells in and about the vascular lumen.  xsd:string  "{""dce:type"":[{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007638""}],""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://en.wikipedia.org/wiki/Cavernous_hemangioma""}]}"