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 group of chefs are cooking at a barbecue restaurant.
Hypothesis: Chefs cooking steak at a barbecue restaurant.
Update: The main dish on the menu is filet mignon.

Output: strengthener


Input: Consider Input: Premise: Runner 3618 is racing down the street.
Hypothesis: The runner is sweaty.
Update: The runner is dripping with sweat despite only being halfway through the race.

Output: strengthener


Input: Consider Input: Premise: Two young men and a young woman are sitting in a living room type setting as they talk and laugh together.
Hypothesis: people telling jokes
Update: There is a photo album of funny pictures open beside them.


Output: weakener