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 is an astronaut when PersonY grew up
Hypothesis: PersonX then gets respect
Update: PersonX's mission fails to land on mars/

Ex Output:
weakener


Ex Input:
Premise: PersonX rushes to the hospital
Hypothesis: As a result, PersonX wants take medication
Update: PersonX needs emergency surgery.

Ex Output:
weakener


Ex Input:
Premise: PersonX forms PersonY image
Hypothesis: As a result, PersonX feels persuasive
Update: PersonX was able to change PersonY's deeply held opinion.

Ex Output:
strengthener