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 increases PersonY's knowledge
Hypothesis: Because PersonX wanted to educate
Update: PersonX was PersonY's supervisor.

Output: weakener


Input: Consider Input: Premise: PersonX improves PersonX's game
Hypothesis: PersonX then gains points
Update: It is too late in the year for any more competitions.

Output: weakener


Input: Consider Input: Premise: PersonX starts going off
Hypothesis: Because PersonX wanted to be heard
Update: PersonX was tired of no one listening to them.


Output: strengthener