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: Distilling water removes harmful substances before drinking. 
Question: Distilling water removes what before people drink it?

Answer: harmful substances.


Question: Fact: phones require electrical energy to function. 
Question: What do phones require to function?

Answer: electrical energy.


Question: Fact: Magnetism can cause real-world things to repel each other. 
Question: Magnetism can cause what to repel each other?

Answer:
real-world things.