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: all vertebrates have jaws. 
Question: what do all vertebrates have?
Example Output: jaws.

Example Input: Fact: Starfish lack respiratory and excretory systems. 
Question: What kind of animal doesn't have a respiratory or excretory system?
Example Output: starfish.

Example Input: Fact: A tape measure is used to measure the side of a square. 
Question: A tape measure is used to what the side of a square?
Example Output:
measure.