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: Various people out and about in a public place on an autumn day.
Hypothesis: A group of classmates out and about in public on an autumn day.
Update: There is a school bus parked nearby.

Output: strengthener


Input: Consider Input: Premise: A man with a tan hat and jacket is fishing in green waters.
Hypothesis: A man in outdoor gear catches food from a pond.
Update: The man tosses the fish back into the pond.

Output: weakener


Input: Consider Input: Premise: A brown dog is climbing over a golden dog that is carrying bottle in its mouth.
Hypothesis: A brown dog has a bottle in it's mouth and is running away from a golden dog.
Update: A brown dog trying to share the bottle with the golden dog.


Output: weakener