In this task, you are given a premise, a hypothesis, and an update. The premise sentence describes a real-world situation and is always assumed to be true. The hypothesis sentence describes an assumption or inference that you might make about that situation having read the premise. The update provides additional information about the situation that might weaken or strengthen the hypothesis. A weakener is a statement that weakens the hypothesis, that is, it makes you much less likely to believe the hypothesis is true. A strengthener is a statement that strengthens the hypothesis, that is, it makes you much more likely to believe the hypothesis is true. Your task is to answer with 'strengthener' or 'weakener' if the update strengthens or weakens the hypothesis, respectively.
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Question: Premise: A man alone crosscountry skis in the wilderness while wearing a huge backpack.
Hypothesis: A man skis in the wilderness while it's snowing
Update: The fresh powder makes the skiing smooth.

Answer: strengthener


Question: Premise: A female student concentrates on her schoolwork.
Hypothesis: A student is at school working on her schoolwork.
Update: The library is very quiet and a good place for her to finish her assignment.

Answer: strengthener


Question: Premise: A snowboarder with black and yellow attire in midair with his hand up in the sky bends his knees to prepare to land.
Hypothesis: The snowboarder is competing in a competition.
Update: A crowd claps and cheers and judges hold up numbers.

Answer:
strengthener