[
  {
    "assertion": 1,
    "retraction": 0,
    "graph": "graph",
    "subject": "DOID:502",
    "predicate": "IAO:0000115",
    "object": "A central nervous system cancer that is characterized by mesenchymal tumors within the CNS that develops from meninges, has_material_basis_in abnormally proliferating cells derives_from mesoderm.",
    "datatype": "xsd:string",
    "annotation": "{\"dce:type\":[{\"datatype\":\"_IRI\",\"meta\":\"owl:Axiom\",\"object\":\"obo:ECO_0007645\"}],\"oio:hasDbXref\":[{\"datatype\":\"xsd:string\",\"meta\":\"owl:Axiom\",\"object\":\"url:https://www.ncbi.nlm.nih.gov/pubmed/1669699\"},{\"datatype\":\"xsd:string\",\"meta\":\"owl:Axiom\",\"object\":\"url:https://www.sciencedirect.com/science/article/pii/B978032344941000014X\"}]}"
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]