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 sees PersonZ's friend PersonY
Hypothesis: As a result, PersonX wants to have a good time
Update: They're at a house party

Ex Output:
strengthener


Ex Input:
Premise: PersonX feels hungry
Hypothesis: Before, PersonX needed to have been smoking weed
Update: PersonX has not eaten all day.

Ex Output:
weakener


Ex Input:
Premise: PersonX loses all of PersonY's money
Hypothesis: PersonX then consumed with guilt
Update: X signs an agreement to repay it with interest.

Ex Output:

strengthener