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 reads the book
Hypothesis: As a result, PersonX wants to find more titles by the same author
Update: PersonX loved the book

Ex Output:
strengthener


Ex Input:
Premise: PersonX walks alone
Hypothesis: As a result, PersonX wants call home
Update: PersonX is feeling nervous about walking home alone at night.

Ex Output:
strengthener


Ex Input:
Premise: PersonX is time to eat
Hypothesis: Before, PersonX needed prepare meal
Update: PersonX paid the delivery person ten dollars.

Ex Output:

weakener