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

Example Input: Some compounds form rigid frameworks called crystals.
Example Output: Some compounds form rigid frameworks called what?

Example Input: Radioactive decay can give off energy and particles.
Example Output: Radioactive decay can give off energy and what else?

Example Input: Does water get colder or warmer the deeper you go?
Example Output:
Does water get colder or warmer the deeper you go?