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 dresses for school
Hypothesis: Because PersonX wanted to go
Update: PersonX is the type of person who enjoys school.
Example Output: strengthener

Example Input: Premise: PersonX runs the show
Hypothesis: As a result, PersonX feels aggressive
Update: People are scared of PersonX
Example Output: strengthener

Example Input: Premise: PersonX finds new work
Hypothesis: Before, PersonX needed to get a job interview outfit
Update: PersonX shops at the store.
Example Output:
strengthener