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 is on PersonX's way to work
Hypothesis: PersonX then arrive on time
Update: PersonX stops to eat breakfast and has trouble getting going again.

Ex Output:
weakener


Ex Input:
Premise: PersonX makes PersonY experiment
Hypothesis: Because PersonX wanted to open persony's eyes
Update: PersonY is experimenting with psychedelics.

Ex Output:
strengthener


Ex Input:
Premise: PersonX makes it snappy
Hypothesis: PersonX then picks up pace
Update: It is a nice day for a leisurely stroll in the park.

Ex Output:

weakener