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 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: A man with two dogs on a beach
Hypothesis: A man is chasing two dogs on a beach.
Update: The dogs got off of their leashes.

SOLUTION: strengthener

PROBLEM: Premise: A man in a green t-shirt and long tan apron hacks apart the carcass of a cow while another man hoses away the blood.
Hypothesis: Two men are butchering meat.
Update: The men are under a halal sign

SOLUTION:
strengthener