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.

[Q]: Premise: PersonX touches PersonY on the shoulder
Hypothesis: As a result, PersonX feels gregarious
Update: PersonX wants to fight PersonY.
[A]: weakener


[Q]: Premise: PersonX makes PersonY inventory
Hypothesis: PersonX then gets yelled at
Update: PersonY says they messed it up
[A]: strengthener


[Q]: Premise: PersonX is a bit nervous
Hypothesis: As a result, PersonX feels anxious
Update: Person X is trembling in front of everyone.
[A]:
strengthener