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 male taking a nap on a hot afternoon.
Hypothesis: A big human taking a nap.
Update: The man is on a bed that is buckling due to his weight.

Ex Output:
strengthener


Ex Input:
Premise: A man and a woman that is holding flowers smile in the sunlight.
Hypothesis: A couple smile on the bench.
Update: The sound of the ocean can be heard.

Ex Output:
strengthener


Ex Input:
Premise: A young man in the pool with brown hair squirting water out of his hands.
Hypothesis: There is a boy having a great time in the pool.
Update: The man is trying to keep a bully away by spraying him with water.

Ex Output:

weakener