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

SOLUTION: lister

PROBLEM: Category: PRESIDENTIAL FIRSTS 
Clue: 1st president to refuse a 3rd term

SOLUTION: george washington

PROBLEM: Category: MMM...BEER 
Clue: "Take off, eh!" The McKenzie bros. of "SCTV" did commercials touting this Canadian beer

SOLUTION:
molson\'s