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.

Example Input: Premise: PersonX is coming to visit
Hypothesis: PersonX is seen as excited to see daughter
Update: PersonX is coming to have a hard discussion
Example Output: weakener

Example Input: Premise: PersonX learns to cook
Hypothesis: Then, he knows how to cook
Update: Person X has a culinary degree on his wall.
Example Output: strengthener

Example Input: Premise: PersonX sets the timer
Hypothesis: As a result, PersonX wants to sleep
Update: PersonX is in the kitchen.
Example Output:
weakener