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

Example Input: Running requires a lot of calories.
Example Output: What does running require?

Example Input: Blocked tubes can cause inability to have children and issues with reproduction.
Example Output: What can cause inability to have children and issues with reproduction?

Example Input: A person's arm straightens when muscles antagonistic to biceps contract
Example Output:
What straightens when muscles antagonistic to biceps contract?