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 finds PersonX's hotel
Hypothesis: As a result, PersonX wants to take rest
Update: PersonX just drove 500 miles.

Ex Output:
strengthener


Ex Input:
Premise: PersonX turns PersonY's head to look at PersonY
Hypothesis: As a result, PersonX feels careless
Update: PersonX crashes into a pole.

Ex Output:
strengthener


Ex Input:
Premise: PersonX eats for lunch
Hypothesis: Before, PersonX needed to be hungry
Update: PersonX had been eating cookies.

Ex Output:
weakener