TASK DEFINITION: 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.
PROBLEM: 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.

SOLUTION: strengthener

PROBLEM: Premise: A smiling man with short brown hair in a black shirt with an open orange shoe box.
Hypothesis: The man is buying new shoes.
Update: The shoe box holds a big pile of receipts.

SOLUTION: weakener

PROBLEM: Premise: A man with a camera sitting on a stair.
Hypothesis: A man filming the streets.
Update: The man is trying to figure out how to load the film into his digital camera.

SOLUTION:
weakener