instruction:
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: Machines can cause objects to change shape. 
Question: What can cause objects to change shape?
answer:
Machines.


question:
Fact: Stimuli can cause the brain to experience pain. 
Question: What can cause the brain to experience pain?
answer:
stimuli.


question:
Fact: Jellyfish and corals are radial, tentacled animals that live mostly in the seas. 
Question: What are some examples of radial, tentacled animals that live mostly in the seas?
answer:

jellyfish and corals.