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: Older man and woman are in costume on stage during a performance.
Hypothesis: The man and woman are married.
Update: They have a significant age difference

Ex Output:
weakener


Ex Input:
Premise: Two women and a man in a studio looking at a large portrait of Cher.
Hypothesis: Two women and a man are thinking about purchasing the large portrait of Cher.
Update: They are being shown around a friend's home.

Ex Output:
weakener


Ex Input:
Premise: A boy with a blue shirt plays with a toy truck.
Hypothesis: A boy playing with a toy truck while his parents argue.
Update: He is sad and wishes he had headphones on.

Ex Output:

strengthener