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 gets tired
Hypothesis: PersonX is seen as sluggish
Update: PersonX moves very slowly.

Ex Output:
strengthener


Ex Input:
Premise: PersonX comes over to PersonY
Hypothesis: PersonX is seen as cordial
Update: PersonX is drunk

Ex Output:
weakener


Ex Input:
Premise: PersonX walks to PersonX's class
Hypothesis: Before, PersonX needed go to school
Update: PersonX's local community center offers a variety of classes.

Ex Output:
weakener