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 reaches across the table
Hypothesis: PersonX then spills drink
Update: The table is completely empty

Ex Output:
weakener


Ex Input:
Premise: PersonX offers PersonY the job
Hypothesis: PersonX then gets thanked
Update: This is PersonY's dream job.

Ex Output:
strengthener


Ex Input:
Premise: PersonX carries PersonX's weight
Hypothesis: Because PersonX wanted to do his fair share.
Update: PersonX is in a group project

Ex Output:

strengthener