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 dog in the snow.
Hypothesis: The puppy is frolicking in the snow.
Update: the dog has been with his owner for many years

Ex Output:
weakener


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: Woman in gray sweater with headband and earbuds walking on crowded street.
Hypothesis: A lady is listening to music and cannot hear all the people around her.
Update: The woman is singing out loud.

Ex Output:

strengthener