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.

Example 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
Example Output: weakener

Example Input: Premise: A man in a pink shirt stands next to a stack of hats.
Hypothesis: A man is standing next to the hat display in the store.
Update: The man has shopping bags with him.
Example Output: strengthener

Example Input: Premise: Three boys in t-shirt standing outside of a dilapidated building.
Hypothesis: They used to live in the building.
Update: The building has a sign saying that it's condemned.
Example Output:
strengthener