Write a correct answer for the question. You should reason about prototypical situations and provide the correct answer. Avoid answers that provide incomplete justification for the question.

Example Input: name something that flies but doesn't have an engine.
Example Output: birds

Example Input: name an office supply that you'd be surprised to see on your kid's list of school supplies.
Example Output: computer

Example Input: name something that a very thrifty person would re-use after a birthday party
Example Output:
candles