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 wears out PersonX's welcome
Hypothesis: As a result, PersonX wants to apologize
Update: PersonX wanted to make a good impression
Example Output: strengthener

Example Input: Premise: PersonX drives for hours
Hypothesis: Before, PersonX needed to be looking for somewhere
Update: PersonX drives the same route for years.
Example Output: weakener

Example Input: Premise: PersonX makes PersonY at home
Hypothesis: PersonX is seen as glad
Update: PersonX welcomes his friend's  with some warm tea as they entered his hom
Example Output:
strengthener