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 warns PersonY of the danger
Hypothesis: Because PersonX wanted to be kind.
Update: PersonX wants to not be sued over liability
Example Output: weakener

Example Input: Premise: PersonX receives PersonX's reward
Hypothesis: Before, PersonX needed to win a contest
Update: PersonX found the missing cat and turned it in to the owner.
Example Output: weakener

Example Input: Premise: PersonX is 8 years old
Hypothesis: As a result, PersonX feels childish
Update: PersonX is the youngest of three children.
Example Output:
strengthener