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.

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.
strengthener

Premise: Two people standing in a curved interior, multi-level building.
Hypothesis: The people are standing in an elevator inside.
Update: People are standing inside curved multi-level building.
weakener

Premise: A young woman wearing a white dress with a blue towel in her lap is having her hair dried by another woman used a hair dryer.
Hypothesis: A women is getting her hair cut
Update: The other woman has hair dye stains on her hands.

weakener