Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

Input: Consider Input: All enzymes have an optimal temperature and ph.

Output: All enzymes have an optimal temperature and what?


Input: Consider Input: In circles way do particles of water move in deep water.

Output: In which way do particles of water move in deep water?


Input: Consider Input: A prism helps people understand what makes up white light.
Output: Which object helps people understand what makes up white light?