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

Ex Output:
weakener


Ex Input:
Premise: People hurrying to get to work in a busy city.
Hypothesis: People waiting at a bus stop.
Update: The people wait on the sidewalk as a bus pulls up by them.

Ex Output:
strengthener


Ex Input:
Premise: A woman in black converse walks down the sidewalk on a cold day.
Hypothesis: She is heading to her job.
Update: She is dressed in a business suit and carrying a briefcase.

Ex Output:

strengthener