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: One man is working on a wristwatch while another checks his work.
Hypothesis: One man is working on a wrist watch to repair it.
Update: The man is using tiny tools.
strengthener

Premise: A little girl in a red outfit is lying on her side in a strange position.
Hypothesis: A girl is sleeping.
Update: The girl has her eyes closed
strengthener

Premise: A group of teenagers in formal wear mingle and look at each other.
Hypothesis: teenagers are at the prom
Update: There is banner up top that says Sweet 16 Birthday on it.

weakener