A couple are at an Art exhibit

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and they are looking at a portrait that has them a little taken aback. The picture depicts 3 very black, very naked men sitting on a park bench; 2 have a black penis and the one in the middle has a pink penis.
As the couple are looking somewhat puzzled , the Irish artist walks by and says "Can I help you with this painting. I'm the artist who painted it." The man says "Well, we like the painting but don't understand why you have 3 African men on a bench, and the one in the middle has a pink penis while the other two have a black penis."
The Irish artist says "Oh you are misinterpreting the painting. They're not African men, they are Welsh coal miners and the one in the middle went home for lunch.