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

Example Input: The bird ancestor that lived in trees developed wings, which is commonly associated with birds.
Example Output: The bird ancestor that lived in trees developed what feature commonly associated with birds?

Example Input: Matter that mechanical wave energy can only travel through is medium.
Example Output: What is the name of matter that mechanical wave energy can only travel through?

Example Input: Pressure and vibration are examples of physical type of stimuli.
Example Output:
Pressure and vibration are examples of what type of stimuli?