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.

Ex Input:
Premise: PersonX never found it
Hypothesis: As a result, PersonX wants to ask for others help
Update: PersonX is approaching a group of friends.

Ex Output:
strengthener


Ex Input:
Premise: PersonX takes a few minutes
Hypothesis: As a result, PersonX feels relaxed
Update: PersonX takes a massage break for a few minutes.

Ex Output:
strengthener


Ex Input:
Premise: PersonX calls PersonY forth
Hypothesis: Because PersonX wanted them to come forward
Update: PersonX needed assistance.

Ex Output:
strengthener