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.

Premise: Two men ride horses while wielding whips.
Hypothesis: Two men are racing horses.
Update: Two men wield whips as they ride horses pulling plows behind them.
weakener

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.
strengthener

Premise: A boy belly-surfing a skateboard into a pile of autumn leaves.
Hypothesis: The boy belly-surfing is asian.
Update: The boy is wearing a helmet that covers his facial features.

weakener