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.

Premise: PersonX looks after PersonX's children
Hypothesis: Before, PersonX needed to work with his/her spouse
Update: PersonX is divorced.
weakener

Premise: PersonX pulls a prank on PersonY
Hypothesis: Because PersonX wanted to have fun
Update: PersonX wanted revenge on PersonY for their prank on them.
weakener

Premise: PersonX loves to read
Hypothesis: Because PersonX wanted to enhance knowledge
Update: PersonX reads encyclopedias.

strengthener