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 consistency, answers should be in all lower cased letters.
question:
Category: CAFETERIA 
Clue: It's a good day to warm up with a bowl of this thick hearty vegetable soup, from the Italian for "something served"
answer:
minestrone


question:
Category: DIAMONDBACKS 
Clue: Of 8, 16 or 28, the length in feet of the longest diamondback ever recorded (not counting Randy Johnson)
answer:
8 feet


question:
Category: SKYWATCH 
Clue: From the ground you only see half of this colorful effect; from a plane it is often seen as a full circle
answer:

rainbow