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 PersonY's phone number
Hypothesis: PersonX is seen as happy
Update: The number is fake
Example Output: weakener

Example Input: Premise: PersonX buries in PersonY's hands
Hypothesis: PersonX is seen as helpless
Update: They are both doing an acrobatic routine.
Example Output: weakener

Example Input: Premise: PersonX asks PersonX's husband
Hypothesis: PersonX then gets rebuffed
Update: PersonX and their husband aren't getting along right now.
Example Output:
strengthener