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 meets PersonY in person
Hypothesis: Before, PersonX needed talk to persony
Update: PersonX set up the appointment with PersonY.

Output: strengthener


Input: Consider Input: Premise: PersonX takes care of business
Hypothesis: As a result, PersonX feels independent
Update: X followed his wife's order to do so.

Output: weakener


Input: Consider Input: Premise: PersonX sells the car
Hypothesis: PersonX is seen as happy
Update: The car is an heirloom


Output: weakener