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 walks alone
Hypothesis: As a result, PersonX wants call home
Update: PersonX is feeling nervous about walking home alone at night.

Ex Output:
strengthener


Ex Input:
Premise: PersonX eats so much
Hypothesis: As a result, PersonX feels glutonous
Update: PersonX has never eaten so much.

Ex Output:
strengthener


Ex Input:
Premise: PersonX is n't as bad as PersonY thought
Hypothesis: Before, PersonX needed to spend time with PersonX
Update: PersonX is a celebrity PersonY didn't know much about.

Ex Output:

weakener