Premise: "A man wearing a red life jacket is holding onto a rope coming down off a ship."\nHypothesis: "A ship is sinking."\nDo we know that the hypothesis entailed by the premise?
Let's be accurate as possible. Think before you answer.
it is not possible to tell
The ship may not be sinking and the man could simply be transferring off the ship.

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So, the answer is it is not possible to tell