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

Input: Consider Input: The bird ancestor that lived in trees developed wings, which is commonly associated with birds.

Output: The bird ancestor that lived in trees developed what feature commonly associated with birds?


Input: Consider Input: Carbon atoms have six neutrons as well as six protons.

Output: Carbon atoms have six neutrons as well as how many protons?


Input: Consider Input: When the ground absorbs the water and it settles below the surface it is called groundwater.
Output: When the ground absorbs the water and it settles below the surface it is called what?