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.

Ex Input:
Premise: PersonX gets on with PersonX's life
Hypothesis: Because PersonX wanted to move ahead in life
Update: PersonX could not get over the breakup with PersonX's girlfriend.

Ex Output:
weakener


Ex Input:
Premise: PersonX makes PersonX's entry
Hypothesis: PersonX then cheered
Update: PersonX is scheduled to congratulate the winning football team.

Ex Output:
strengthener


Ex Input:
Premise: PersonX is on PersonY's way back
Hypothesis: Because PersonX wanted help person find the way home
Update: PersonX lives on the way

Ex Output:

weakener