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

Example Input: All of the populations that live in the same area make up a(n) community, which includes populations of different organisms.
Example Output: All of the populations that live in the same area make up what type of group, which includes populations of different organisms?

Example Input: The right atrium of the heart receives the blood is pumped from veins of the systemic circuit.
Example Output: What part of the heart receives the blood is pumped from veins of the systemic circuit?

Example Input: The cell sap is the liquid inside the central vacuole.
Example Output:
What is the liquid inside the central vacuole called?