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 looks up at PersonY
Hypothesis: Because PersonX wanted looks up
Update: PersonY is violently grabbing PersonX's chin.

Ex Output:
weakener


Ex Input:
Premise: PersonX gives PersonX enough rope
Hypothesis: Because PersonX wanted to be assured
Update: PersonX isn't sure they want to go through with it.

Ex Output:
weakener


Ex Input:
Premise: PersonX hears PersonY's voice again
Hypothesis: PersonX is seen as happy
Update: PersonY is their best friend

Ex Output:
strengthener