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.

Example Input: Premise: The Irish Setter is retrieving a flashlight from the pond.
Hypothesis: A dog is fetching something for its owner.
Update: Behind the dog are a few police cars with their lights on.
Example Output: weakener

Example Input: Premise: A young boy hanging on a pole smiling at the camera.
Hypothesis: The young boy is hispanic.
Update: The young boy has blond hair and blue eyes and speaks with a Swedish accent.
Example Output: weakener

Example Input: Premise: In a baseball game, one of the players is about to throw the ball, with a runner in the background and a teammate close behind.
Hypothesis: The two teams are playing in a championship game.
Update: A large crowd of people is cheering and watching the game
Example Output:
strengthener