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: The white dog stands in the snow wearing a black jacket.
Hypothesis: The dog is dressed for the snow.
Update: The dog thinks he's a person.

Ex Output:
weakener


Ex Input:
Premise: Three school boys posing under a blue umbrella.
Hypothesis: Some asian children posing for a picture in the rain.
Update: The three Hispanic children are sitting on the sunny beach under the umbrella.

Ex Output:
weakener


Ex Input:
Premise: Two horses are pulling a woman in a cart.
Hypothesis: A woman enjoys her day out with her horses.
Update: The woman is smiling and soaking up the sunshine.

Ex Output:

strengthener