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 starts coughing
Hypothesis: Before, PersonX needed sitting on chair
Update: They had to see the doctor

Ex Output:
strengthener


Ex Input:
Premise: PersonX meets PersonY in person
Hypothesis: Before, PersonX needed talk to persony
Update: PersonX set up the appointment with PersonY.

Ex Output:
strengthener


Ex Input:
Premise: PersonX sits at home
Hypothesis: Because PersonX wanted to save money
Update: X is unpopular.

Ex Output:
weakener