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: Two men, both wearing black outfits with red stripes are engaging in some sort of fighting style using canes.
Hypothesis: They are in a competition
Update: People walk their dogs by them in the park.
Example Output: weakener

Example Input: Premise: a group of man are sitting outside playing music.
Hypothesis: A jam session is taking place in the park.
Update: An impromptu crowd gathers around.
Example Output: strengthener

Example Input: Premise: A woman in a black shirt looks to her right, while a man in a blue vest on her left drinks from a glass.
Hypothesis: The people are in a saloon.
Update: They are both cheering the players on the field
Example Output:
weakener