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 group of workers are waiting to be picked up.
Hypothesis: A group of workers are waiting for a ride to their meeting while checking their watches.
Update: they stare at the clock on the tower.
weakener

Premise: Two men playing ultimate Frisbee.
Hypothesis: Two guys are playing with a yellow Frisbee.
Update: The frisbee matches some tulips under a tree.
strengthener

Premise: A little boy in blue is jumping in the air.
Hypothesis: A young man in blue overalls is jumping happily in the air.
Update: The man just saw a snake.

weakener