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.

Example Input: Fact: Sight is the ability to see when light allows an image to be focused on the retina. 
Question: What is it called when light allows an image to be focused on the retina?
Example Output: Sight.

Example Input: Fact: locusts spread disease and destroy crops. 
Question: What spreads disease and destroy crops?
Example Output: locusts.

Example Input: Fact: Long distance running involves electron transport. 
Question: Long distance running involves  transport of?
Example Output:
electrons.