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 replaces PersonY's tire
Hypothesis: Before, PersonX needed get tools together
Update: PersonY has an extensive tool collection.

Ex Output:
weakener


Ex Input:
Premise: PersonX goes swimming in the pool
Hypothesis: PersonX is seen as tired
Update: They swim many laps

Ex Output:
weakener


Ex Input:
Premise: PersonX buys PersonX's new shoes
Hypothesis: PersonX then needs to adjust and accommodate for comfort level of new shoes
Update: The shoes are too tight

Ex Output:
weakener