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: BETTER KNOWN AS.... 
Clue: Singer Helen Folasade Adu
answer:
sade


question:
Category: TO PROTECT 
Clue: This "service" is best known for protecting the president, but also investigates forgery
answer:
the secret service


question:
Category: FOOD FACTS 
Clue: German sausage named for the crackling sound the skin of the sausage makes when bitten into
answer:

knockwurst