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 performs the heimlich maneuver
Hypothesis: Because PersonX wanted to save the person who is choking
Update: PersonX is scared for the person choking.
[A]: strengthener


[Q]: Premise: PersonX scratches PersonX's head
Hypothesis: As a result, PersonX feels confused
Update: PersonX had an itchy head.
[A]: weakener


[Q]: Premise: PersonX invites PersonY to visit
Hypothesis: PersonX is seen as involved
Update: PersonX was told to invite PersonY.
[A]:
weakener