Given a question, generate a paraphrase of that question wihout changing the meaning of it. Your answer should reword the given sentence, but not add information to it or remove information from it. The answer to your question should be the same as the answer to the original question.

Q: Question: which country claims the tallest building?

A: which country holds the tallest building in the world?
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Q: Question: which countries touch both the atlantic and pacific ocean?

A: which countries are touched by both atlantic and pacific oceans?
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Q: Question: what presidents were involved in the 15th amendment?

A:
who was the president when the 15 amendment was ratified?
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