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 pisses like a racehorse
Hypothesis: PersonX then tHE FEELING OF RELIEF
Update: PersonX has prostate cancer.
Example Output: weakener

Example Input: Premise: PersonX gives PersonY death
Hypothesis: PersonX then went sell
Update: PersonX would forever keep his mother's ring as a reminder
Example Output: weakener

Example Input: Premise: PersonX learns a lot
Hypothesis: Because PersonX wanted to be successful
Update: PersonX studied computer science
Example Output:
strengthener