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

Input: Consider Input: A skeleton that consists of hard, mineralized structures located within the soft tissue of organisms is called endoskeleton.

Output: A skeleton that consists of hard, mineralized structures located within the soft tissue of organisms is called what?


Input: Consider Input: Wave amplitude and wavelength are two important measures of wave size.

Output: Wave amplitude and wavelength are two important measures of what?


Input: Consider Input: Stress is applied to a rock to make it bend and flow.


Output: What is applied to a rock to make it bend and flow?