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 moves back
Hypothesis: PersonX then personX smiles
Update: PersonX always loved their hometown.

Ex Output:
strengthener


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 starts to improve
Hypothesis: As a result, PersonX feels determined
Update: PersonX admires his growing muscles in the mirror.

Ex Output:

strengthener