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: ART 
Clue: The Italian name of this 15th century masterpiece is "L'Ultima Cena"
\"the last supper\"

Category: FAMILIAR PHRASES 
Clue: The phrase "Flower Power" was coined by this poet in the 1960s
allen ginsberg

Category: IMAGES OF AMERICA 
Clue: Citing John Winthrop, who said, "The eyes of all people are on us", Ronald Reagan liked to compare the U.S. to this

a shining city on a hill