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: Heat energy makes digestion easier. 
Question: What does heat energy do?

Ex Output:
makes digestion easier.


Ex Input:
Fact: Deep gorges are formed by flowing rivers through erosion over long periods of time. 
Question: What are formed by flowing rivers through erosion over long periods of time?

Ex Output:
deep gorges.


Ex Input:
Fact: Powering an electrical device with a battery requires electron flow. 
Question: Electron flow allows a battery to do what?

Ex Output:

power an electrical device.