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 cart of large water containers is in front of two women who are standing as well as two women who are walking down the street.
Hypothesis: The cart of water is for children.
Update: Only older people and adults can be seen anywhere.

Ex Output:
weakener


Ex Input:
Premise: A boy wearing a green shirt on a bicycle reflecting off a store window.
Hypothesis: The boy is stopped on his bike.
Update: The boy is talking to the store owner.

Ex Output:
strengthener


Ex Input:
Premise: Two women holding shopping bags are standing outside having a conversation.
Hypothesis: A couple of ladies talking about what they just bought.
Update: One of the ladies dropped a receipt from their bag.

Ex Output:

strengthener