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. It makes you much less likely to believe the hypothesis is true. A strengthener is a statement that strengthens the hypothesis. It makes you much more likely to believe the hypothesis is true. Your task is to output 'strengthener' or 'weakener' if the update strengths or weakens the hypothesis, respectively.

Example Input: Premise: PersonX changes PersonY clothes
Hypothesis: As a result, PersonX wants y to get undressed
Update: They are horny
Example Output: strengthener

Example Input: Premise: PersonX splashes in the water
Hypothesis: As a result, PersonX wants to relax
Update: X wrings out the shirt and reaches for another article to wash.
Example Output: weakener

Example Input: Premise: PersonX walks slowly
Hypothesis: As a result, PersonX wants to speed up
Update: They need to get to class but people always walk slow in the halls
Example Output:
strengthener