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

Ex Output:
strengthener


Ex Input:
Premise: PersonX goes home to bed
Hypothesis: As a result, PersonX wants snore
Update: PersonX has a deviated septum.

Ex Output:
strengthener


Ex Input:
Premise: PersonX lands right
Hypothesis: PersonX then hAS TO USE AGILITY
Update: X twists and turns.

Ex Output:

strengthener