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

Example Input: Constructive interference is when two waves combine to create a larger wave.
Example Output: What is it called when two waves combine to create a larger wave?

Example Input: For to synthesize glycogen purpose does liver use the excess carbohydrate.
Example Output: For what purpose does liver use the excess carbohydrate?

Example Input: Eight-membered rings does the stable form of sulfur at room temperature contain.
Example Output:
What does the stable form of sulfur at room temperature contain?