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 reads the book
Hypothesis: As a result, PersonX wants to find more titles by the same author
Update: PersonX loved the book
Example Output: strengthener

Example Input: Premise: PersonX feels like going
Hypothesis: Because PersonX wanted to do something elsewhere
Update: PersonX is agoraphobic and hates leavning their house.
Example Output: weakener

Example Input: Premise: PersonX goes shopping at the mall
Hypothesis: Because PersonX wanted to buy new clothes
Update: Person X is holding GAP bags.
Example Output:
strengthener