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 crosses paths
Hypothesis: As a result, PersonX feels determind
Update: PersonX cowers in fear from their bully.
Example Output: weakener

Example Input: Premise: PersonX presents PersonY picture
Hypothesis: PersonX then personX gives context
Update: PersonX loves explaining old pictures
Example Output: strengthener

Example Input: Premise: PersonX prepares for the storm
Hypothesis: PersonX is seen as confident that their house will be protected.
Update: PersonX leaves their house to go to a relative's house outside the storm center.
Example Output:
weakener