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 learns how to play the violin
Hypothesis: Because PersonX wanted to be a musician.
Update: PersonX wants to join the orchestra.

Output: strengthener


Input: Consider Input: Premise: PersonX speaks PersonY's name
Hypothesis: PersonX then gets person y attention
Update: PersonX is a screaming fan at PersonY's concert

Output: weakener


Input: Consider Input: Premise: PersonX gets cold feet
Hypothesis: Before, PersonX needed to put a sled in his car
Update: It is snowing outside.


Output: strengthener