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 greets PersonY
Hypothesis: PersonX is seen as glad
Update: PersonY looks angrily at PersonX.

Ex Output:
weakener


Ex Input:
Premise: PersonX gives PersonY a note
Hypothesis: As a result, PersonX wants to hear PersonY's response
Update: X asked Y for a date.

Ex Output:
strengthener


Ex Input:
Premise: PersonX rubs PersonY's forehead
Hypothesis: PersonX is seen as helpful and kind
Update: PersonX is rubbing PersonY's forehead into the dirt

Ex Output:

weakener