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 gets on with PersonX's life
Hypothesis: Because PersonX wanted to move ahead in life
Update: PersonX could not get over the breakup with PersonX's girlfriend.
Example Output: weakener

Example Input: Premise: PersonX takes PersonY's hand in PersonZ's
Hypothesis: As a result, PersonX wants play ring around the rosey
Update: PersonX, PersonY, and PersonZ, are seated around a dimly candle-lit table.
Example Output: weakener

Example Input: Premise: PersonX gives PersonY trouble
Hypothesis: As a result, PersonX feels obnoxious
Update: PersonY is PersonX's overbearing sibling.
Example Output:
weakener