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 is a great basketball player
Hypothesis: PersonX is seen as accomplished.
Update: PersonX wins the title.
strengthener

Premise: PersonX tracks PersonY
Hypothesis: Before, PersonX needed find out PersonY's habits.
Update: X hired a PI.
strengthener

Premise: PersonX does a lot of work
Hypothesis: PersonX is seen as happy
Update: Person X deals with a lot of back pain from work.
weakener