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: A small child sleeping in a bed with a stuffed animal.
Hypothesis: A small child is sleeping with a stuffed bear.
Update: the child holds the duck shape toy

Ex Output:
weakener


Ex Input:
Premise: A yellow car is creating smoke by spinning its tires.
Hypothesis: A car is being driven dangerously in the street.
Update: The driver doesn't realize he left the parking brake on before exiting the lot.

Ex Output:
weakener


Ex Input:
Premise: A man in a long brown coat is looking at another person in a bright yellow jacket.
Hypothesis: Two friends are meeting in the street.
Update: The men smile and wave at each other.

Ex Output:

strengthener