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.
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Question: Category: QUOTATIONS ABOUT LAWYERS 
Clue: Playwright who penned the famous line, "The first thing we do, let's kill all the lawyers"

Answer: william shakespeare


Question: Category: FOOD SCIENCE 
Clue: In 2002 Japanese scientists discovered it contains the enzyme Lachrymatory-Factor Synthase

Answer: onions


Question: Category: MYTHICAL HEROES 
Clue: In a play by Euripides, he goes mad & thinks he's tearing down the walls of Mycenae but destroys his own house

Answer:
hercules