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: Five women are sitting in a greenhouse with desert succulent plants, possibly reading or discussing something together.
Hypothesis: The female friends are taking care of the new greenhouse.
Update: One woman gets up to tend to the flowers.
Example Output: strengthener

Example Input: Premise: A boy is doing a stunt with his skateboard.
Hypothesis: A boy is doing tricks at a skate park.
Update: The boy is in his driveway.
Example Output: weakener

Example Input: Premise: Older women in a blue sweater playing the piano by the window.
Hypothesis: Older woman soothing herself with music.
Update: The woman is very sad.
Example Output:
strengthener