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 buries in PersonY's hands
Hypothesis: PersonX is seen as helpless
Update: They are both doing an acrobatic routine.

Ex Output:
weakener


Ex Input:
Premise: PersonX wants to fly
Hypothesis: Because PersonX wanted to be in the sky
Update: PersonX is a bird otherkin

Ex Output:
strengthener


Ex Input:
Premise: PersonX waits patiently
Hypothesis: Because PersonX wanted to get food
Update: PersonX sits behind others at a gas pump

Ex Output:
weakener