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

Example Input: Control rods play an important role in the modulation of the nuclear chain reaction.
Example Output: What play an important role in the modulation of the nuclear chain reaction?

Example Input: According to the english system measurement, 4 cups much is equal to 2 pints, 1 quart, and of a gallon.
Example Output: According to the english system measurement, how much is equal to 2 pints, 1 quart, and of a gallon?

Example Input: Three many pairs of autosomes are there.
Example Output:
How many pairs of autosomes are there?