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.

Input: Consider Input: Premise: PersonX throws water
Hypothesis: PersonX then throws more
Update: PersonX started a water fight.

Output: strengthener


Input: Consider Input: Premise: PersonX attends to PersonY's duties
Hypothesis: As a result, PersonX feels focused
Update: Person X is working quickly.

Output: strengthener


Input: Consider Input: Premise: PersonX lets PersonY's stay
Hypothesis: Before, PersonX needed to decide to be generous
Update: PersonY isn't paying rent.
Output: strengthener