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 fails PersonX's classes
Hypothesis: As a result, PersonX feels anger
Update: PersonX lost their scholarship

Ex Output:
strengthener


Ex Input:
Premise: PersonX finds something to eat
Hypothesis: As a result, PersonX feels thankful
Update: PersonX has to eat dog food.

Ex Output:
weakener


Ex Input:
Premise: PersonX requires PersonY answer
Hypothesis: PersonX is seen as determined
Update: PersonX has been pestering PersonY for an answer for a long time.

Ex Output:

strengthener