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 watches basketball
Hypothesis: Before, PersonX needed to find a TV
Update: PersonX holds a TV remote
Example Output: strengthener

Example Input: Premise: PersonX writes PersonY account
Hypothesis: As a result, PersonX feels respectful
Update: PersonX tells a story of working hard and helping people.
Example Output: strengthener

Example Input: Premise: PersonX asks PersonY's forgiveness
Hypothesis: As a result, PersonX wants to forgive
Update: PersonX understands PersonY's resentment, as PersonX is typically a revengeful person.
Example Output:
weakener