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: A man in a dark pants lifts his leg while five girls wearing rollerskates gather near him.
Hypothesis: A coach gives advice to his team.
Update: The man is a celebrity
Example Output: weakener

Example Input: Premise: Various people sitting on a white metal railing on the side of a city street.
Hypothesis: The people are waiting for a bus to come.
Update: The people are holding bus passes.
Example Output:
strengthener