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.

Q: Category: CLEANING UP 
Clue: In 1887 Johnson & Johnson was incorporated in part to improve upon this man's study of antisepsis

A: lister
****
Q: Category: BEFORE I WAS ELECTED 
Clue: Senator Lincoln Chafee of this New England state spent 7 years as a blacksmith at racetracks in the U.S. & Canada

A: rhode island
****
Q: Category: LUCKY SEVEN 
Clue: Symbolized by a pair of scales, it's the seventh sign of the zodiac

A:
libra
****