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.

Input: Consider Input: Premise: PersonX lets PersonY explain
Hypothesis: PersonX is seen as satisfied.
Update: PersonY had a good explanation

Output: strengthener


Input: Consider Input: Premise: PersonX takes it seriously
Hypothesis: As a result, PersonX wants to be known as a professional
Update: They have worked in the field for years

Output: strengthener


Input: Consider Input: Premise: PersonX gets PersonX's son
Hypothesis: As a result, PersonX wants check to see how their son is doing.
Update: PersonX asks their son about their day.


Output: strengthener