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: salpingitis can inhibit reproduction. 
Question: Which bodily system can by hindered by salpingitis?

Output: reproductive.


Input: Consider Input: Fact: One-celled animals can be partially classified on the basis of how they move. 
Question: Movement is one classification method for what?

Output: one-celled animals.


Input: Consider Input: Fact: some parasites kill humans but most do not. 
Question: what do some parasites kill but most don't?


Output: humans.