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 gives tom
Hypothesis: Before, PersonX needed to have something to give
Update: X passes along his knowledge.

Ex Output:
strengthener


Ex Input:
Premise: PersonX runs PersonY's business
Hypothesis: As a result, PersonX feels hardworking
Update: Person X stretches out in his posh office overlooking the city with a drink in his hand.

Ex Output:
weakener


Ex Input:
Premise: PersonX wants to learn how to sing
Hypothesis: As a result, PersonX feels determined
Update: PersonY tells PersonX their voice sounds terrible.

Ex Output:

weakener