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 keeps PersonY from starving
Hypothesis: Before, PersonX needed to find food
Update: PersonX's refrigerator appeared to be full.

Ex Output:
weakener


Ex Input:
Premise: PersonX decides to go for a run
Hypothesis: As a result, PersonX feels dedicated
Update: PersonX will get sore because they haven't ran in years.

Ex Output:
weakener


Ex Input:
Premise: PersonX presents PersonY overview
Hypothesis: As a result, PersonX feels beneficial
Update: PersonY is incompetent

Ex Output:
strengthener