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 uploads the video
Hypothesis: Because PersonX wanted to gain many youtube subscribers
Update: PersonX doesn't have any other career plans.

Ex Output:
strengthener


Ex Input:
Premise: PersonX remodels PersonX's bathroom
Hypothesis: Before, PersonX needed to buy supplies
Update: PersonX puts a hammer in their shopping cart.

Ex Output:
strengthener


Ex Input:
Premise: PersonX sees PersonY for years
Hypothesis: Before, PersonX needed to start dating PersonY
Update: PersonX wants to propose marriage.

Ex Output:

strengthener