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 calls my parents
Hypothesis: As a result, PersonX wants to talk
Update: PersonX has important news
strengthener

Premise: PersonX is playing tennis
Hypothesis: Because PersonX wanted get some exercise
Update: X is trying to lose 10 lbs.
strengthener

Premise: PersonX contacts the seller
Hypothesis: Before, PersonX needed to pickup the phone
Update: PersonX got the seller's phone number from the listing real estate agent.

strengthener