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 young boy jumping upside-down into a pool.
Hypothesis: A child playing a game of marco polo.
Update: The boy is trying to show off to the girls.

Ex Output:
weakener


Ex Input:
Premise: A man in a blue shirt is pushing another man in a white shirt during football practice.
Hypothesis: The offensive man is blocking the defense.
Update: The offensive man is blocking the exit from the football field.

Ex Output:
weakener


Ex Input:
Premise: Two women are talking at a bar.
Hypothesis: Women are talking and drinking.
Update: A man just bought them drinks.

Ex Output:

strengthener