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.

Input: Consider Input: Fact: heat is detected by sensory nerve cells. 
Question: What is detected by sensory nerve cells?

Output: heat.


Input: Consider Input: Fact: Some animals that eat plants.have more than one stomach. 
Question: Some animals that eat plants have?

Output: more than one stomach.


Input: Consider Input: Fact: Most pituitary hormones control hormone production elsewhere in the body. 
Question: A vital role of hormones produced by the pituitary gland?


Output: controlling hormone production.