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 spends the next few weeks
Hypothesis: PersonX then finishes up after the few weeks
Update: PersonX clears their calendar for the next few months.

Ex Output:
strengthener


Ex Input:
Premise: PersonX wants to go again
Hypothesis: Because PersonX wanted to enjoy the ride
Update: PersonX is ready to go home.

Ex Output:
weakener


Ex Input:
Premise: PersonX is with PersonY's friends
Hypothesis: Before, PersonX needed to make a plan of activities
Update: PersonX and PersonY's friends live in different cities.

Ex Output:

strengthener