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 finds PersonY one
Hypothesis: Before, PersonX needed to search for it
Update: PersonY has strange tastes

Ex Output:
strengthener


Ex Input:
Premise: PersonX gets food poisoning
Hypothesis: As a result, PersonX feels weak
Update: They have a strong stomach

Ex Output:
weakener


Ex Input:
Premise: PersonX is working on PersonX's laptop
Hypothesis: PersonX is seen as glad to be done with work
Update: It's very late

Ex Output:
strengthener