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: Three women in headscarves examine a camera.
Hypothesis: The women are looking to buy a camera.
Update: The women have their wallets out

Ex Output:
strengthener


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 on his bike leaping over a hill with trees in the background.
Hypothesis: A boy on his BMX bike leaping over a hill
Update: The bike has pegs besides the back tire

Ex Output:

strengthener