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

Input: Consider Input: Glycerol is a triol, an alcohol which contains three hydroxl functional groups.

Output: Glycerol is a triol, an alcohol which contains three what?


Input: Consider Input: Three many pairs of autosomes are there.

Output: How many pairs of autosomes are there?


Input: Consider Input: Melanocytes are located in the bottom layer of the epidermis.


Output: Melanocytes are located in which layer of the epidermis?