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: An elderly woman sitting in the window of a stone building
Hypothesis: A woman relaxing after a long day of cleaning.
Update: A mop sits nearby in a bucket.
Example Output: strengthener

Example Input: Premise: Three street musicians wearing brown coats play the drums and trumpet in front of a store.
Hypothesis: three street musicians are playing jazz in front of a store.
Update: the musicians cover a country song
Example Output: weakener

Example Input: Premise: Man in a white t-shirt, smoking a cigarette, sitting in front of a red door.
Hypothesis: The man is sitting on his stoop.
Update: The man is sitting on a bench.
Example Output:
weakener