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

[EX Q]: x-rays are used in research
[EX A]: What are used in research?

[EX Q]: Parts on the leaves and stems close to reduce moisture loss.
[EX A]: Parts on the leaves and stems close to reduce what?

[EX Q]: Finding a place requires knowing maps
[EX A]:
What is required to find a place?