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 starts coughing
Hypothesis: Before, PersonX needed sitting on chair
Update: They had to see the doctor
strengthener

Premise: PersonX rolls on PersonY's back
Hypothesis: PersonX is seen as in control
Update: PersonY taps out
strengthener

Premise: PersonX gazes upon PersonY
Hypothesis: As a result, PersonX wants to have friendship
Update: PersonX is disgusted by PersonY.
weakener