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 prom with PersonY
Hypothesis: Because PersonX wanted healthy
Update: PersonX is planning to commit suicide
Example Output: weakener

Example Input: Premise: PersonX worships the ground PersonY walks on
Hypothesis: As a result, PersonX feels devoted
Update: Person X is playing a part in a play.
Example Output: weakener

Example Input: Premise: PersonX makes it through the day
Hypothesis: PersonX is seen as relieved
Update: PersonX received a promotion after a difficult project.
Example Output:
strengthener