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 performs PersonY's task
Hypothesis: Then, he loses time
Update: It is still morning
Example Output: weakener

Example Input: Premise: PersonX dresses for school
Hypothesis: Because PersonX wanted to go
Update: PersonX is the type of person who enjoys school.
Example Output: strengthener

Example Input: Premise: PersonX leaves home
Hypothesis: PersonX is seen as prepared
Update: PersonX is naked
Example Output:
weakener