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.

Ex Input:
Fact: scraping oneself on a contaminated object may cause death. 
Question: Scraping oneself on a contaminated object may cause?

Ex Output:
death.


Ex Input:
Fact: Birds have backbones. 
Question: What animals have a backbone?

Ex Output:
Birds.


Ex Input:
Fact: All chemical reactions must first overcome the energy barrier. 
Question: What must a chemical reaction overcome before starting?

Ex Output:

energy barrier.