This is a paraphrasing task. In this task, you're given a sentence and your task is to generate another sentence which express same meaning as the input using different words.

Q: pahlk had told karsa that but a single nass cut through the escarpment , marked by a torrential waterfall that fed into silver lake .

A: pahlk karsa said he was leading a single pass through the mountains , marked by the sharp falls that powered the silver lake .
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Q: member states shall describe in their strategy which accompanying measures they will adopt to ensure the successful implementation of their scheme .

A: in their strategy , the member states shall deny any accompanying measures to ensure the successful implementation of their project .
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Q: this possibility of limiting the risk of costs is , in my view , sufficient to prove that implementing measures exist .

A:
in my view , this possibility is sufficient to demonstrate the existence of implementing measures .
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