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 wants a puppy for PersonX's birthday
Hypothesis: PersonX is seen as desiring
Update: PersonX keeps nagging their parents about the puppy.

Output: strengthener


Input: Consider Input: Premise: PersonX touches PersonY on the shoulder
Hypothesis: As a result, PersonX feels gregarious
Update: PersonX wants to fight PersonY.

Output: weakener


Input: Consider Input: Premise: PersonX promotes to manager
Hypothesis: As a result, PersonX feels recognized
Update: The promotion is mentioned in the company's newsletter.


Output: strengthener