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: Man smokes while sitting on a parked scooter.
Hypothesis: A man smokes a cigarette while sitting on his scooter.
Update: The man smells of tobacco.

Ex Output:
strengthener


Ex Input:
Premise: Five women are sitting in a greenhouse with desert succulent plants, possibly reading or discussing something together.
Hypothesis: The female friends are taking care of the new greenhouse.
Update: One woman gets up to tend to the flowers.

Ex Output:
strengthener


Ex Input:
Premise: A group of musicians performing are surrounded by the public watching.
Hypothesis: A group of musicians is playing music by The Beatles while surrounded by the public watching.
Update: The public watching the band don't know the songs.

Ex Output:

weakener