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 takes the new job
Hypothesis: Before, PersonX needed to go for a job interview
Update: PersonX was surprised to hear from the recruiter out of the blue giving him a job offer right then and there.
Example Output: weakener

Example Input: Premise: PersonX never found it
Hypothesis: As a result, PersonX wants to ask for others help
Update: PersonX is approaching a group of friends.
Example Output: strengthener

Example Input: Premise: PersonX takes the trash out
Hypothesis: As a result, PersonX feels helpful
Update: PersonX is doing chores for a friend who just gave birth
Example Output:
strengthener