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.

Input: Consider 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

Output: weakener


Input: Consider Input: Premise: A young boy in red swim shorts playing with sand on a beach.
Hypothesis: A boy is building a sandcastle.
Update: He uses a shovel to dig a moat.

Output: strengthener


Input: Consider Input: Premise: A woman sitting on a bench next to someone wearing a hat and sitting in a wheelchair.
Hypothesis: The woman is taking her mother who is handicapped out to enjoy the air.
Update: The women share similar facial features.


Output: strengthener