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 gets some water
Hypothesis: As a result, PersonX feels capable
Update: PersonX drinks the sea water and gets sick.

Ex Output:
weakener


Ex Input:
Premise: PersonX replaces PersonX's old one
Hypothesis: PersonX then keep the new one
Update: The old one smells

Ex Output:
weakener


Ex Input:
Premise: PersonX eats chicken wings
Hypothesis: Before, PersonX needed buy chicken wings
Update: PersonX is at a friend's party

Ex Output:
weakener