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: A man preparing his net for fishing.
Hypothesis: A young man fixes holes in a net before fishing for bait fish.
Update: The man's face is wrinkled.
Example Output: weakener

Example Input: Premise: Three people are sitting and waiting.
Hypothesis: Two people can't wait any longer.
Update: The people all look relaxed.
Example Output: weakener

Example Input: Premise: People gathered around at an outdoor event.
Hypothesis: There are people gathered around for a church picnic.
Update: A minister is serving chicken salad.
Example Output:
strengthener