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: A family is sledding in the snow.
Hypothesis: A big family is sledding in the snow.
Update: The family is in China where the one child policy is implemented
Example Output: weakener

Example Input: Premise: A cowboy riding on the back of a bronco in a competition.
Hypothesis: the cowboy was winning the competition
Update: The cowboy was in last place.
Example Output: weakener

Example Input: Premise: The two women are smiling at the camera.
Hypothesis: The women are taking a selfie.
Update: The camera is 20 feet away.
Example Output:
weakener