[ { "assertion": 1, "retraction": 0, "graph": "graph", "subject": "DOID:4817", "predicate": "IAO:0000115", "object": "An autonomic nervous system benign neoplasm that is characterized by the presence of mature ganglion cells and a mature Schwannian stroma and arises from the sympathetic trunk in the mediastinum.", "datatype": "xsd:string", "annotation": "{\"dce:type\":[{\"datatype\":\"_IRI\",\"meta\":\"owl:Axiom\",\"object\":\"obo:ECO_0007640\"}],\"oio:hasDbXref\":[{\"datatype\":\"xsd:string\",\"meta\":\"owl:Axiom\",\"object\":\"url:https://medlineplus.gov/ency/article/001437.htm\"}]}" } ]