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: The man is driving his equipment under the archway.
Hypothesis: The sad man is driving his equipment under the archway.
Update: The man just got a promotion at work.

SOLUTION: weakener

PROBLEM: Premise: A man in a tank top looks at a woman near a water sculpture.
Hypothesis: A man thinks a woman is pretty.
Update: The man is smiling.

SOLUTION: strengthener

PROBLEM: Premise: One shirtless boy and two boys wearing striped shirts wrestle with each other playfully.
Hypothesis: a few boys wrestling outside
Update: The sun is in their eyes as they wrestle.

SOLUTION:
strengthener