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.

Ex Input:
Premise: PersonX walks to PersonX's desk
Hypothesis: PersonX then hears laughter
Update: PersonX has toilet paper stick to their shoes

Ex Output:
strengthener


Ex Input:
Premise: PersonX loves PersonY anymore
Hypothesis: As a result, PersonX feels caring
Update: PersonX cooks for PersonY every day.

Ex Output:
strengthener


Ex Input:
Premise: PersonX wipes the slate clean
Hypothesis: As a result, PersonX feels hygienic
Update: PersonX is seen holding a bottle of disinfectant.

Ex Output:
strengthener