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 consistency, answers should be in all lower cased letters.
PROBLEM: Category: ANIMALS 
Clue: Types of this aquatic creature include chimney, sheep's wool, and common bath

SOLUTION: the sponge

PROBLEM: Category: WHAT SIGN ARE YOU? 
Clue: You're a 7' tall red octagon with white letters; you tell folks to do this, & dang it, you mean it

SOLUTION: a stop sign

PROBLEM: Category: I SPEAK MANY TONGUES 
Clue: A Dutch word for a ship's galley became this last car of a train

SOLUTION:
a caboose