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.

Input: Consider Input: Premise: 2 girls washing a floor covered in soap.
Hypothesis: The floor has lots of bubbles.
Update: The floor is slick and shiny.

Output: weakener


Input: Consider Input: Premise: A man in a tan jacket with a rather intense stare.
Hypothesis: A man is staring at someone he wants to fight
Update: the man goes over to the other man and shoves him

Output: strengthener


Input: Consider Input: Premise: In front of a seated crowd, a man with a gray beard receives a beard trim from a younger man in a black shirt.
Hypothesis: A barber shaves a customer
Update: The man getting the trim stands up and hands the other man some money.


Output: strengthener