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.

Premise: PersonX sings PersonX's songs
Hypothesis: PersonX is seen as accomplished
Update: Person X is competing on stage.
strengthener

Premise: PersonX moves PersonY's car
Hypothesis: As a result, PersonX wants to notify personY
Update: PersonX is stealing the car
weakener

Premise: PersonX arrives safely
Hypothesis: Before, PersonX needed drive safely
Update: PersonX always drove below the speed limit.

strengthener