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: blood traveling to the heart is deoxygenated. 
Question: Blood traveling to the heart is?
Example Output: deoxygenated.

Example Input: Fact: Bacteria can cause food to spoil. 
Question: What causes food to spoil?
Example Output: Bacteria.

Example Input: Fact: insects generally have two pairs of wings to move quickly away from predators. 
Question: what do insects have to move quickly away from predators?
Example Output:
two pairs of wings.