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 floats away
Hypothesis: As a result, PersonX feels ethereal
Update: PersonX is lost at sea.

Ex Output:
weakener


Ex Input:
Premise: PersonX learns fast
Hypothesis: Because PersonX wanted to pass the test.
Update: PersonX is playing basketball

Ex Output:
weakener


Ex Input:
Premise: PersonX suits to PersonX's needs
Hypothesis: As a result, PersonX wants to satisfy byself
Update: Person X sits alone smiling happily, watching tv.

Ex Output:

strengthener