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 woman with gray hair, a brown hat, sunglasses, and a yellow scarf is looking away from the camera.
Hypothesis: The woman hates having her picture taken.
Update: She's looking in her bag for another hat to model.
Example Output: weakener

Example Input: Premise: A man is playing a guitar on stage.
Hypothesis: Jimi Hendriplays live for an eager crowd
Update: The crowd cheers as the song ends.
Example Output: strengthener

Example Input: Premise: One man in a blue shirt and jeans, catches a frisbee on a college campus
Hypothesis: A college student taking a break from his studies jumps and catches a frisbee.
Update: A blanket with open textbooks is on the grass nearby.
Example Output:
strengthener