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 camps with PersonY's family
Hypothesis: Because PersonX wanted to go camping
Update: X didn't know how to turn down the invitation.

Output: weakener


Input: Consider Input: Premise: PersonX fees PersonY's kids
Hypothesis: PersonX is seen as happy
Update: PersonX loves kids

Output: strengthener


Input: Consider Input: Premise: PersonX plays the song
Hypothesis: Before, PersonX needed learn the song
Update: PersonX is playing the song on a guitar.


Output: strengthener