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 Input:
Premise: A boy is doing a stunt with his skateboard.
Hypothesis: A boy is doing tricks at a skate park.
Update: The boy is in his driveway.

Ex Output:
weakener


Ex Input:
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.

Ex Output:
weakener


Ex Input:
Premise: A man rides on his bike with one hand and holds a drink with the other.
Hypothesis: the man is a stunt man
Update: The cyclist has a number pinned to his shirt.

Ex Output:

weakener


