You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

Category: THE TITLE ESCAPES ME 
Clue: 3 chimpanzees travel through time to 20th century Earth in the 1971 sequel "Escape From" this place
the planet of the apes

Category: U.S. GEOGRAPHY 
Clue: The West Point Military Reservation includes Constitution Island, which lies in this river
the hudson river

Category: FOLSOM PRISON BLUES 
Clue: Opened in 1880, Folsom is now the second-oldest California prison, behind only this one

san quentin