In this task you're given a question and you have to paraphrase the question to create the output question while retaining the meaning of the original question.

Q: Why does evil exist and for what purpose?

A: Does evil exist?
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Q: Have leopard seals been known to attack man?

A: Are leopard seals dangerous towards humans?
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Q: What is cement, sand, aggregate ratios in concrete mixing?

A:
How do I calculate cement aggregate and sand in KG by knowing the ratio, say 1:2:4?
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