_:vb50936829 . _:vb50936829 "A prion disease that is characterized by insomnia, hallucinations, dementia and death, located_in the brain."^^ . _:vb50936829 . _:vb50936829 . _:vb50936829 . _:vb50936829 . _:vb50936829 "url:https://en.wikipedia.org/wiki/Fatal_familial_insomnia"^^ .