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 loves PersonY back
Hypothesis: Because PersonX wanted a good marriage
Update: PersonX is seen kissing PersonY's cheek.
Example Output: strengthener

Example Input: Premise: PersonX cries in pain
Hypothesis: Because PersonX wanted relief
Update: PersonX is acting in a play.
Example Output: weakener

Example Input: Premise: PersonX hears a phone ring
Hypothesis: Before, PersonX needed to have phone on
Update: The sounds comes from the neighbor's house.
Example Output:
weakener