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.

Input: Consider Input: Premise: PersonX buys an expensive car
Hypothesis: As a result, PersonX wants ride the car
Update: PersonX finds long drives relaxing.

Output: strengthener


Input: Consider Input: Premise: PersonX wants to adopt a cat
Hypothesis: PersonX is seen as happy
Update: PersonX is told they aren't allowed to have a cat.

Output: weakener


Input: Consider Input: Premise: PersonX sings PersonX's song
Hypothesis: Before, PersonX needed to learn to sing
Update: PersonX is deaf


Output: strengthener