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.

Example Input: Premise: PersonX loves PersonY anymore
Hypothesis: As a result, PersonX feels caring
Update: PersonX cooks for PersonY every day.
Example Output: strengthener

Example Input: Premise: PersonX eats more healthy food
Hypothesis: Because PersonX wanted to live longer
Update: PersonX eats a lot of fruits and vegetables.
Example Output: strengthener

Example Input: Premise: PersonX eats PersonY's plants
Hypothesis: Because PersonX wanted to be healthy
Update: PersonX has been told by their doctor that they're obese.
Example Output:
strengthener