instruction:
Given a statement, generate a question such that the answer is contained in that statement.
question:
bats use muscles for flight
answer:
What do bats use for flight?


question:
Bioterrorism is another potential dangerto life within it.
answer:
What is another potential danger to life within it?


question:
Octopuses use ink for hiding from sharks.
answer:

What do Octopuses use for hiding from sharks?