TASK DEFINITION: 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.
PROBLEM: Fact: the moon revolving around the Earth causes the new moon. 
Question: the moon revolving around the Earth causes what?

SOLUTION: new moon.

PROBLEM: Fact: expansion can cause fatigue. 
Question: what can cause fatigue?

SOLUTION: expansion.

PROBLEM: Fact: A prism can be used to bend a ray of light. 
Question: What tool can be used to bend rays of light?

SOLUTION:
Prism.