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 is losing money
Hypothesis: As a result, PersonX wants cut down his expenses
Update: PersonX bought new equipment.

Output: weakener


Input: Consider Input: Premise: PersonX rolls on PersonY's back
Hypothesis: PersonX is seen as in control
Update: PersonY taps out

Output: strengthener


Input: Consider Input: Premise: PersonX is camping with PersonX's friends
Hypothesis: Before, PersonX needed to pack supplies
Update: PersonX wanted to be prepared.


Output: strengthener