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, that is, it makes you much less likely to believe the hypothesis is true. A strengthener is a statement that strengthens the hypothesis, that is, it makes you much more likely to believe the hypothesis is true. Your task is to answer with 'strengthener' or 'weakener' if the update strengthens or weakens the hypothesis, respectively.

Input: Consider Input: Premise: A male taking a nap on a hot afternoon.
Hypothesis: A big human taking a nap.
Update: The man is on a bed that is buckling due to his weight.

Output: strengthener


Input: Consider Input: Premise: A man enjoying a drink at a bar top.
Hypothesis: A man enjoying a drink at a bar top while smoking.
Update: The man is addicted to cigarettes.

Output: strengthener


Input: Consider Input: Premise: Guy and a girl sitting on a bench with plates of food.
Hypothesis: The coworkers sit down to enjoy their BBQ at the company picnic.
Update: The company picnic was required by all employees, but everyone still had a good time.


Output: strengthener