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 belongs to PersonY group
Hypothesis: As a result, PersonX feels team spirited
Update: Person X is high fiving everyone in the group.

Ex Output:
strengthener


Ex Input:
Premise: PersonX wears out PersonX's welcome
Hypothesis: As a result, PersonX wants to apologize
Update: PersonX wanted to make a good impression

Ex Output:
strengthener


Ex Input:
Premise: PersonX steals it from PersonY
Hypothesis: As a result, PersonX wants to have what person Y has
Update: PersonX is a car aficionado and PersonY just bought a Tesla.

Ex Output:

strengthener