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.

Input: Consider Input: Premise: PersonX knows the answer
Hypothesis: Before, PersonX needed get asked
Update: PersonX was watching a trivia show.

Output: weakener


Input: Consider Input: Premise: PersonX takes PersonY to PersonZ
Hypothesis: As a result, PersonX feels generous
Update: PersonX drives for four hours

Output: strengthener


Input: Consider Input: Premise: PersonX walks home one day
Hypothesis: PersonX then see's more of the neighborhood
Update: PersonX takes the road less traveled


Output: strengthener