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 is playing tennis
Hypothesis: Because PersonX wanted get some exercise
Update: X is trying to lose 10 lbs.

Ex Output:
strengthener


Ex Input:
Premise: PersonX enters the contest
Hypothesis: Because PersonX wanted to win
Update: Person X is defending their championship.

Ex Output:
strengthener


Ex Input:
Premise: PersonX asks my friends
Hypothesis: Before, PersonX needed to come up with a question
Update: PersonX is holding a map

Ex Output:
strengthener