Premise: "Three painters in all white are painting over a building covered in red and black graffiti."\nHypothesis: "The painters are painting a mural."\nDo we know that the hypothesis entailed by the premise?
Let's be accurate as possible and think first.
it is not possible to tell
They might not be painting a mural; not all paintings are murals.

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The final answer: it is not possible to tell