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 complains to the manager
Hypothesis: Before, PersonX needed approach the manager
Update: Person X had to get up.

Ex Output:
strengthener


Ex Input:
Premise: PersonX plays poker
Hypothesis: Before, PersonX needed to place a bet
Update: PersonX is playing legal poker

Ex Output:
weakener


Ex Input:
Premise: PersonX thinks of a solution
Hypothesis: As a result, PersonX wants to implement the solution
Update: PersonX has been working on the problem all day.

Ex Output:

strengthener