[ { "assertion": 1, "retraction": 0, "graph": "graph", "subject": "DOID:4955", "predicate": "IAO:0000115", "object": "A central nervous system cancer that is characterized by melanocytic neoplasm that develops from melanocytes, has_material_basis_in abnormally proliferating cells derives_from neural crest cells.", "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/pmc/articles/PMC4209706/\"},{\"datatype\":\"xsd:string\",\"meta\":\"owl:Axiom\",\"object\":\"url:https://www.ncbi.nlm.nih.gov/pubmed/10403296\"}]}" } ]