TASK DEFINITION: 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.
PROBLEM: Premise: PersonX is a fun day
Hypothesis: PersonX then gets a birthday gift
Update: PersonX was on a vacation.

SOLUTION: weakener

PROBLEM: Premise: PersonX eats so much
Hypothesis: As a result, PersonX wants to take a stomach medicine
Update: PersonX frequently suffers from heartburn.

SOLUTION: strengthener

PROBLEM: Premise: PersonX feels a sharp pain
Hypothesis: As a result, PersonX wants seek medical attention
Update: PersonX just stubbed their toe.

SOLUTION:
weakener