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 band playing on stage, with one man on keyboards and the other playing a red guitar.
Hypothesis: A band is playing to a sold out crowd.
Update: The people are screaming encore.

Ex Output:
strengthener


Ex Input:
Premise: A crowd of people are holding signs and protesting against school cuts.
Hypothesis: A crowd of people chanting.
Update: A crowd of students and teachers chanting, "No layoffs."

Ex Output:
strengthener


Ex Input:
Premise: A woman teaching a young girl not to be afraid of puppies.
Hypothesis: The instructor taught the girl to approach the four-legged animals.
Update: The woman is starting the girl out with a smaller, less threatening mammal.

Ex Output:

strengthener