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 has to take PersonY to the doctor
Hypothesis: As a result, PersonX wants to meet the doctor
Update: They have an emergency
Example Output: weakener

Example Input: Premise: PersonX makes PersonY evaluation
Hypothesis: PersonX is seen as in control
Update: PersonX is doing a blind evaluation.
Example Output: weakener

Example Input: Premise: PersonX takes a leaf out of PersonY's book
Hypothesis: As a result, PersonX wants to thank personY for teaching them
Update: PersonY didn't want PersonX to copy him.
Example Output:
weakener