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 sees PersonZ's friend PersonY
Hypothesis: As a result, PersonX wants to have a good time
Update: They're at a house party

Output: strengthener


Input: Consider Input: Premise: PersonX impresses PersonY's girlfriend
Hypothesis: As a result, PersonX wants to part ways
Update: X and Y are committed for life.

Output: weakener


Input: Consider Input: Premise: PersonX gives up PersonY
Hypothesis: PersonX is seen as upset
Update: X looks drawn.


Output: strengthener