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 works day and night
Hypothesis: PersonX then sets a strong example
Update: They are the boss of the company

Ex Output:
strengthener


Ex Input:
Premise: PersonX finally gave in
Hypothesis: As a result, PersonX feels tired
Update: The deliberation took many hours.

Ex Output:
strengthener


Ex Input:
Premise: PersonX holds PersonY close
Hypothesis: Before, PersonX needed see personY
Update: Person Y says to Person X 'Thanks for turning on the light'

Ex Output:

strengthener