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 presents PersonY picture
Hypothesis: PersonX then personX gives context
Update: PersonX loves explaining old pictures

Ex Output:
strengthener


Ex Input:
Premise: PersonX tells PersonY to write
Hypothesis: As a result, PersonX wants tHANK HIM
Update: PersonY is PersonX's secretary and PersonX is dictating thank you cards for PersonX to write.

Ex Output:
strengthener


Ex Input:
Premise: PersonX gets my hair cut
Hypothesis: PersonX then person X takes Person Y to the barber.
Update: PersonX cuts their own hair while in quarantine.

Ex Output:
weakener