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

Input: Consider Input: Instead of heat, organisms use catalysis to speed up reactions.

Output: Instead of heat, organisms use what to speed up reactions?


Input: Consider Input: Rod is the general shape of centrioles.

Output: What is the general shape of centrioles?


Input: Consider Input: Fracking delivers natural gas from rock that might not otherwise be obtainable.


Output: What delivers natural gas from rock that might not otherwise be obtainable?