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: fish need to be cooled. 
Question: what needs to be cooled?
Example Output: fish.

Example Input: Fact: paleontologists study the remains of plants. 
Question: What do palentologists study?
Example Output: plants.

Example Input: Fact: The growth in roots that comes from primary and secondary meristems can be measured with a ruler. 
Question: The growth in what comes from primary and secondary meristems can be measured with a ruler?
Example Output:
roots.