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.
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Question: Premise: PersonX gets PersonY's lunch
Hypothesis: PersonX is seen as good about themselves
Update: PersonY eats every bite of the sandwich.

Answer: strengthener


Question: Premise: PersonX returns to the store
Hypothesis: As a result, PersonX wants to demand a new vase at customer service
Update: They need something fixed

Answer: weakener


Question: Premise: PersonX checks under PersonY's bed
Hypothesis: As a result, PersonX feels brave
Update: PersonX knows there's nothing under the bed.

Answer:
weakener