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 drives for hours
Hypothesis: Before, PersonX needed to be looking for somewhere
Update: PersonX drives the same route for years.
Example Output: weakener

Example Input: Premise: PersonX pays dividends
Hypothesis: Because PersonX wanted to reward someone for their investment
Update: PersonX scored an important client.
Example Output: strengthener

Example Input: Premise: PersonX wipes away PersonY's tears
Hypothesis: As a result, PersonX feels kindful
Update: PersonX is disgusted by the sight of someone crying.
Example Output:
weakener