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.
--------
Question: Fact: AIDS infects and destroys helper T cells. 
Question: what infects and destroys helper T cells?

Answer: AIDS.


Question: Fact: abalone  are invertebrates such as the common snail. 
Question: What are invertebrates such as the common snail?

Answer: abalone.


Question: Fact: A watch measures hours, seconds, and minutes. 
Question: What measures hours, seconds, and minutes?

Answer:
A watch.