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 performs the heimlich maneuver
Hypothesis: Because PersonX wanted to save the person who is choking
Update: PersonX is scared for the person choking.

Ex Output:
strengthener


Ex Input:
Premise: PersonX is on PersonX's way to work
Hypothesis: PersonX then arrive on time
Update: PersonX stops to eat breakfast and has trouble getting going again.

Ex Output:
weakener


Ex Input:
Premise: PersonX never seen PersonY
Hypothesis: PersonX is seen as like they don't know what is going on
Update: PersonX and PersonY work in the same office.

Ex Output:

strengthener