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 man wearing a jersey with the number 13 on it is ready to bat at a ball while people in the stands look on.
Hypothesis: A man with jersey number 13 is in the middle of a baseball game.
Update: The bat is flattened.

Ex Output:
weakener


Ex Input:
Premise: A boy in a red shirt riding a bike.
Hypothesis: A boy is riding a bike to school.
Update: It is a lovely Sunday afternoon.

Ex Output:
weakener


Ex Input:
Premise: A man with dark hair and mustache talks on his cellphone with a concerned look on his face, while looking at grapes and citrus fruit in front of him.
Hypothesis: A man on a cellphone had received bad news about his job.
Update: The man has a business letter open in front of him

Ex Output:

strengthener