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 slender man, shirtless with tattoos, carries his skateboard while making a displeased face.
Hypothesis: A shirtless man with a skateboard is unhappy that he didn't win a contest
Update: The man just checked his bank account balance and found it was overdrawn.

Ex Output:
weakener


Ex Input:
Premise: Two boys playing on a trampoline.
Hypothesis: Two boys playing chess on a trampoline.
Update: There is a checkered board on top of the trampoline.

Ex Output:
strengthener


Ex Input:
Premise: A little girl is sitting in bed with a book and a drink.
Hypothesis: A girl is going to study for an exam.
Update: The book has Winnie the Pooh on the cover.

Ex Output:

weakener