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 scuba diving while holding a large flashlight.
Hypothesis: A man is looking at fish.
Update: The man is near a reef.
Example Output: strengthener

Example Input: Premise: Women dressed in theme costumes dance in a circle before an outdoor crowd.
Hypothesis: Women are celebrating Halloween.
Update: It is the month of may.
Example Output: weakener

Example Input: Premise: A young women with brown hair walking down a city street in the rain.
Hypothesis: A young woman is walking in the rain with an umbrella.
Update: The woman's hair is soaked.
Example Output:
weakener