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 simplicity, answers should be in all lower cased letters.
question:
Category: INVENTIONS 
Clue: The delivery system for Ban deodorant, introduced in 1955, was based on this invention, patented in 1938
answer:
ball point pen


question:
Category: AMERICANA 
Clue: Originally beardless, Uncle Sam got  his chin whiskers from images depicting this real-life man
answer:
abraham lincoln


question:
Category: LEGAL EAGLES 
Clue: In 1931 he narrated "The Mystery of Life", a full-length film about evolution
answer:

clarence darrow