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 tastes fine
Hypothesis: Before, PersonX needed work as food critic
Update: PersonX is a professional food taster.

Output: strengthener


Input: Consider Input: Premise: PersonX brings PersonY news
Hypothesis: Before, PersonX needed to be journalist
Update: X loved gossip.

Output: weakener


Input: Consider Input: Premise: PersonX has a great night
Hypothesis: PersonX then goes to sleep
Update: They were up for hours


Output: strengthener