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

Input: Consider Input: Most of the digestion reactions occur in the small intestine.

Output: Where do most of the digestion reactions occur?


Input: Consider Input: Lichens are not a single organism, but rather an example of a mutualism.

Output: Lichens are not a single organism, but rather an example of a what?


Input: Consider Input: Birds need a light-weight body for to stay aloft.
Output: Why do birds need a light-weight body?