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: 3 men cooking in a small kitchen.
Hypothesis: Three men are around the stove.
Update: One of the men says he can smell something burning.
Example Output: strengthener

Example Input: Premise: Customers shopping at an outdoor fruit market.
Hypothesis: People are shopping in a farmer's market.
Update: there are lots of vendors selling produce.
Example Output: strengthener

Example Input: Premise: Soccer players warm up by kicking the soccer ball around while the crowd waits.
Hypothesis: The crowd watched the players warm up and shouted encouragement
Update: The crowd is from Philadelphia.
Example Output:
weakener