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: Three girls in a marching band are wearing gold outfits and men are drumming behind them.
Hypothesis: Men drumming
Update: People with beards are holding drums and sticks.

Ex Output:
strengthener


Ex Input:
Premise: Two blond women are smiling while one is holding a camera to capture their image.
Hypothesis: Two women taking a selfie on the beach.
Update: The women are wearing bikinis.

Ex Output:
strengthener


Ex Input:
Premise: The people are in the hot air balloon.
Hypothesis: Four people in a hot air balloon.
Update: The air balloon has four seats.

Ex Output:

strengthener