Given a fact, create a question that can be answered using the fact. Construct the question such that it is unambiguous, has a unique answer and the answer can be given using the fact.

Input: Consider Input: Fact: rest has a positive impact on a health

Output: Which habit is healthiest for humans?

Input: Consider Input: Fact: a revolution of the moon around the Earth takes 1 month

Output: A new moon can be observed every?

Input: Consider Input: Fact: an incandescent light bulb converts electricity into heat by sending electricity through a filament
Output: Which is a byproduct of a lightbulb?