Given a statement and question, generate the answer to the question such that the answer is contained in the statement.

[EX Q]: statement: Cats can hunt at night, question: When can Cats hunt?
[EX A]: night

[EX Q]: statement: Water is essential for all known living things in the universe., question: What is essential for all known living things in the universe?
[EX A]: Water

[EX Q]: statement: all cells have cellular material inside the plasma wall, question: What wall does all cells have cellular material inside?
[EX A]:
plasma wall