TASK DEFINITION: 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.
PROBLEM: Category: HE WAS IN THAT? 
Clue: As a child Robert Blake played a Mexican boy in this Bogart classic directed by John Huston

SOLUTION: "the treasure of the sierra madre"

PROBLEM: Category: MUSEUMS 
Clue: This city's Accademia features work by native sons Giorgione & Canaletto

SOLUTION: venice

PROBLEM: Category: GHOST STORIES 
Clue: In 1990's "Ghost", this actor haunts Demi Moore, using Whoopi Goldberg as a conduit

SOLUTION:
patrick swayze