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 little blond girl sitting on the floor looks up.
Hypothesis: The little girl looks up at her father.
Update: A person hands her lollipop.

Ex Output:
strengthener


Ex Input:
Premise: Woman in Jacket with hood up walks alone down crowded street.
Hypothesis: The lady is preparing to walk in a bank where she will steal the pen they let you borrow to sign checks.
Update: The woman finds a pen on the ground.

Ex Output:
weakener


Ex Input:
Premise: In a train station or bus depot a little boy in orange pants is running to his mother, wearing an orange shirt, with many passengers in the background having either backpacks or luggage.
Hypothesis: A boy is chasing after his mother around a trains station.
Update: The boys mom is walking fast as the young boy is running after her.

Ex Output:

strengthener