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.

Input: Consider Input: Premise: PersonX pays all of PersonX's bills
Hypothesis: PersonX then gets change
Update: PersonX lost their wallet.

Output: weakener


Input: Consider Input: Premise: PersonX finishes PersonY's song
Hypothesis: PersonX is seen as proud
Update: PersonX is enjoying the recognition.

Output: strengthener


Input: Consider Input: Premise: PersonX arrives safely
Hypothesis: Because PersonX wanted to be a cautious person
Update: PersonX wore their seatbelt.
Output: strengthener