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.

[EX Q]: Premise: Two males are laying their head down in a restaurant.
Hypothesis: The men are sleepy.
Update: They just worked a 12 hour shift.
[EX A]: strengthener

[EX Q]: Premise: Two men play basketball.
Hypothesis: Two men are competing for the last spot on the basketball team.
Update: Two men are competing to become the final teammate on the basketball team this season.
[EX A]: strengthener

[EX Q]: Premise: People walking in the rain with umbrellas.
Hypothesis: Black people walking with umbrellas.
Update: The people checked the "African American" box for race on a form.
[EX A]:
strengthener