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 leaves the country
Hypothesis: As a result, PersonX feels fleeing
Update: PersonX is slipping in to the boat in the dark night.
Example Output: strengthener

Example Input: Premise: PersonX grows a beard
Hypothesis: As a result, PersonX wants keep it groomed
Update: PersonX works at a job where you need to be clean and groomed.
Example Output: strengthener

Example Input: Premise: PersonX gets PersonX's grades
Hypothesis: As a result, PersonX feels intelligent
Update: PersonX received straight As.
Example Output:
strengthener