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

Input: Consider Input: The reverse process of moving material into a cell is the process of exocytosis.

Output: The reverse process of moving material into a cell is the process of what?


Input: Consider Input: Potential energy type of energy is possessed by autumn leaves before they fall.

Output: What type of energy is possessed by autumn leaves before they fall?


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?