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.

Ex Input:
Premise: An African child attempts a headstand on the front of a boat painted blue and white in water next to a field of crops.
Hypothesis: A child is at a lake.
Update: The name of the boat is The Ocean Fisher

Ex Output:
weakener


Ex Input:
Premise: A boy wearing blue shorts is doing a back flip in the air under a tree.
Hypothesis: A boy is doing back flips outdoors
Update: The tree is in the local park

Ex Output:
strengthener


Ex Input:
Premise: An elderly man with a beard in a dark suit is walking through a rainy city.
Hypothesis: An old man is walking in the rain to see his dying wife.
Update: He holds hands with an elderly woman with beautiful white hair.

Ex Output:

weakener