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 stops shaving
Hypothesis: As a result, PersonX feels aged
Update: PersonX is camping and doesn't have access to showers.
Example Output: weakener

Example Input: Premise: PersonX is as good as new
Hypothesis: Before, PersonX needed to take a shower
Update: PersonX came home from a long shift as a gardener.
Example Output: strengthener

Example Input: Premise: PersonX takes PersonY's son out
Hypothesis: PersonX is seen as helpful
Update: Person Y is angry
Example Output:
weakener