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 beats the meat
Hypothesis: As a result, PersonX wants to rub some spices on it
Update: PersonX loves spicy food.
Example Output: strengthener

Example Input: Premise: PersonX works well
Hypothesis: Because PersonX wanted feel happy while working
Update: PersonX wants a promotion
Example Output: weakener

Example Input: Premise: PersonX finds what PersonY was looking for
Hypothesis: PersonX is seen as happy
Update: PersonX was helping out PersonY.
Example Output:
strengthener