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 is great friends
Hypothesis: PersonX is seen as happy
Update: Person X is smiling big and laughing a lot.
Example Output: strengthener

Example Input: Premise: PersonX becomes a vegetarian
Hypothesis: As a result, PersonX feels selfless
Update: PersonX is doing it for personal reasons.
Example Output: weakener

Example Input: Premise: PersonX tells PersonY thing
Hypothesis: PersonX then personX whispers to PeronY
Update: PersonX and PersonY are in a bar with loud music.
Example Output:
weakener