Write a correct answer to the given question based on its associated fact. Make sure that your answer is contained in the associated fact. Don't be creative and introduce any new word that is not mentioned in the associated fact! Remember that the associated fact has been rearranged to form the question. So, the correct answer words must lie within the associated fact. The correct answer can be a word, phrase, or even a sentence.

Ex Input:
Fact: if a gas is heated the density decreases. 
Question: What happens to the density of a gas when heated?

Ex Output:
decreases.


Ex Input:
Fact: Shrews generate the most heat by keeping their metabolic rate high. 
Question: What metabolic rate does a shrew have?

Ex Output:
High rate.


Ex Input:
Fact: The Columbia River Gorge was formed through erosion over long periods of time. 
Question: What was formed through erosion over long periods of time?

Ex Output:

Columbia River Gorge.