Given a fact, create a question that can be answered using the fact. Construct the question such that it is unambiguous, has a unique answer and the answer can be given using the fact.

Example Input: Fact: sweat is used for adjusting to hot temperatures by some animals
Example Output: A horse is kicked out of the barn on a hot summer's day, because the stalls need mucked, and the workers have difficulty cleaning around the horses. So the horse is standing in the field, in direct sunlight, and begins to overheat a bit. In order to stand the heat better, the horse?

Example Input: Fact: the lunar surface contains many craters
Example Output: The biggest things on the moon are?

Example Input: Fact: a candle is a source of light when it is burned
Example Output:
who would see better through an underground tunnel?