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

Example Input: Bacteria is usually the prey of a protist.
Example Output: What is usually the prey of a protist?

Example Input: Chordates include vertebrates and invertebrates that have a notochord.
Example Output: Chordates include vertebrates and invertebrates that have what?

Example Input: Both glyceraldehyde and glyceric acid are derivatives of biochemical intermediates in metabolism of sugar.
Example Output:
Both glyceraldehyde and glyceric acid are derivatives of biochemical intermediates in metabolism of what?