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: mammals keep warm with hair. 
Question: what do mammals keep warm with?

Ex Output:
hair.


Ex Input:
Fact: Exercise can teach animals how to behave. 
Question: What can teach animals how to behave?

Ex Output:
exercise.


Ex Input:
Fact: Something that a day has 86400 of is used to measure time. 
Question: Time can be measured in something that a day has how many of?

Ex Output:

86400.