instruction:
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 consistency, answers should be in all lower cased letters.
question:
Category: WHAT SIGN ARE YOU? 
Clue: You're a 7' tall red octagon with white letters; you tell folks to do this, & dang it, you mean it
answer:
a stop sign


question:
Category: THE FOURTH WORD 
Clue: In Mark Antony's eulogy for Julius Caesar in Shakespeare, after the crowd quiets down
answer:
lend


question:
Category: COMPLETES THE PROVERB 
Clue: "The opera isn't over..."
answer:

until the fat lady sings