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 man is playing a guitar on stage.
Hypothesis: Jimi Hendriplays live for an eager crowd
Update: The crowd cheers as the song ends.

Ex Output:
strengthener


Ex Input:
Premise: A boy wearing a green shirt on a bicycle reflecting off a store window.
Hypothesis: The boy is stopped on his bike.
Update: The boy is talking to the store owner.

Ex Output:
strengthener


Ex Input:
Premise: Construction workers wearing white hats and orange vests gathered together working on a project.
Hypothesis: The construction workers are working outdoors.
Update: The overhead flood lights brightened the dim corridor.

Ex Output:

weakener