[ { "assertion": 1, "retraction": 0, "graph": "graph", "subject": "DOID:10071", "predicate": "IAO:0000115", "object": "A laryngeal benign neoplasm that is characterized by the presence of a connective tissue core covered by stratified squamous epithelium and that has_symptom hoarseness.", "datatype": "xsd:string", "annotation": "{\"oio:hasDbXref\":[{\"datatype\":\"xsd:string\",\"meta\":\"owl:Axiom\",\"object\":\"url:https://www.ncbi.nlm.nih.gov/books/NBK562327/\"}]}" } ]