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.
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Question: Premise: A car wash worker cleaning the interior of the wheel.
Hypothesis: a person cleaning for a tip
Update: Wheel interiors are not included as a standard car wash feature.

Answer: strengthener


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

Answer: weakener


Question: Premise: Five men, uniformly dressed in white shirts, tie and black slacks converse at the back of an open van.
Hypothesis: Five men prepare to kidnap someone.
Update: The van is all beat up without any lettering.

Answer:
strengthener