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

Input: Consider Input: Soft of these best describes the way a feather feels.

Output: Which of these BEST describes the way a feather feels?

Input: Consider Input: Bacteria is usually the prey of a protist.

Output: What is usually the prey of a protist?

Input: Consider Input: Dna encodes instructions for proteins molecules.
Output: Dna encodes instructions for what kind of molecules?