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 finally gave in
Hypothesis: As a result, PersonX feels tired
Update: The deliberation took many hours.

Output: strengthener


Input: Consider Input: Premise: PersonX performs PersonX's tasks
Hypothesis: As a result, PersonX wants to do a perfect job
Update: Person X looks sad and bored with shoulders slumped while working.

Output: weakener


Input: Consider Input: Premise: PersonX pays close attention
Hypothesis: Before, PersonX needed jots down notes
Update: Person X is taking a college course.


Output: strengthener