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 raises PersonX's kids
Hypothesis: Then, they develop empty net syndrome
Update: PersonX’s children still live with them.
Example Output: weakener

Example Input: Premise: PersonX decides to go for it
Hypothesis: As a result, PersonX wants to go out
Update: PersonX finally chose a movie on Netflix.
Example Output: weakener

Example Input: Premise: PersonX is home alone
Hypothesis: PersonX then x gets rest.
Update: PersonX is sitting in bed.
Example Output:
strengthener