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 buys a new bike
Hypothesis: As a result, PersonX wants to get a helmet
Update: PersonX previous helmet is broken

Output: strengthener


Input: Consider Input: Premise: PersonX gets PersonX's juices flowing
Hypothesis: PersonX is seen as full of adrenaline
Update: PersonX is writing a creative story

Output: weakener


Input: Consider Input: Premise: PersonX loses control of the car
Hypothesis: Before, PersonX needed get in the car
Update: PersonX is wearing a seatbelt.


Output: strengthener