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

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: Sexually do invertebrates reproduce.

Output: How do invertebrates reproduce?


Input: Consider Input: The opening in the front of the eye is called pupil.


Output: What is the opening in the front of the eye called?