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.

Example Input: Premise: PersonX spends time with PersonX's friends
Hypothesis: As a result, PersonX feels lonely
Update: PersonX feels unheard by their friends
Example Output: strengthener

Example Input: Premise: PersonX fixes PersonY's flat tire
Hypothesis: Before, PersonX needed a jockey
Update: PersonX owns a garage
Example Output: strengthener

Example Input: Premise: PersonX eats a lot of candy
Hypothesis: PersonX then personX gets a sugar rush.
Update: PersonX ate sugar-free candy
Example Output:
weakener