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

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

Output: What is usually the prey of a protist?


Input: Consider Input: Phospholipids are vesicles made of.

Output: What are vesicles made of?


Input: Consider Input: Decomposers release inorganic molecules once they have broken down the dead organisms.
Output: What do decomposers release once they have broken down the dead organisms?