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.
--------
Question: Category: AMERICAN HERSTORY 
Clue: Before she was the first black woman in Congress, she was the second in the New York State Assembly

Answer: shirley chisholm


Question: Category: GENERAL SCIENCE 
Clue: A horse's hooves are made up of this protein, the same protein found in your fingernails

Answer: keratin


Question: Category: BODIES OF WATER 
Clue: It's not only the greatest Great Lake, it's also the largest body of fresh water in the world

Answer:
lake superior