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.

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

Premise: PersonX asks PersonY's daughter
Hypothesis: PersonX then gain agreement
Update: PersonX talks with their daughter.
strengthener

Premise: PersonX goes to the animal shelter
Hypothesis: Before, PersonX needed step forward
Update: PersonX walked to the animal shelter.

strengthener