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 impresses PersonY's girlfriend
Hypothesis: As a result, PersonX wants to part ways
Update: X and Y are committed for life.
weakener

Premise: PersonX turns PersonY's head to look at PersonY
Hypothesis: As a result, PersonX feels careless
Update: PersonX crashes into a pole.
strengthener

Premise: PersonX sells PersonX's motorcycle
Hypothesis: Before, PersonX needed to put up an add
Update: X was approached as he parked in the lot and asked the price he'd sell at.
weakener