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 takes PersonY on a hike
Hypothesis: PersonX then does a group activity
Update: PersonX is carrying a bag of uniforms

Ex Output:
strengthener


Ex Input:
Premise: PersonX distributes in forms without permission
Hypothesis: PersonX then blushes
Update: PersonX gets called out for it.

Ex Output:
strengthener


Ex Input:
Premise: PersonX falls asleep in class
Hypothesis: Because PersonX wanted to take a nap due to being tired.
Update: PersonX stayed up all night

Ex Output:
strengthener