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

Example Input: Springs or geysers do we call heated groundwater that erupts from the ground under pressure.
Example Output: What do we call heated groundwater that erupts from the ground under pressure?

Example Input: Instead of heat, organisms use catalysis to speed up reactions.
Example Output: Instead of heat, organisms use what to speed up reactions?

Example Input: Phospholipids are vesicles made of.
Example Output:
What are vesicles made of?