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 unloads the groceries
Hypothesis: PersonX is seen as like she's done a great job
Update: PersonX wanted to help the elderly.

Ex Output:
strengthener


Ex Input:
Premise: PersonX moves the furniture
Hypothesis: Because PersonX wanted to make room
Update: Someone is moving in

Ex Output:
strengthener


Ex Input:
Premise: PersonX is learning to skateboard
Hypothesis: PersonX then scrapes knee
Update: PersonX is very good at skateboarding.

Ex Output:

weakener