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 uploads the video
Hypothesis: Because PersonX wanted to gain many youtube subscribers
Update: PersonX doesn't have any other career plans.

Ex Output:
strengthener


Ex Input:
Premise: PersonX starts right away
Hypothesis: PersonX then have extra time
Update: They should have started an hour ago

Ex Output:
weakener


Ex Input:
Premise: PersonX accomplishes PersonX's object
Hypothesis: Because PersonX wanted to improve the scale growth with this ideas
Update: They accidentally succeeded

Ex Output:
weakener