I protested. "But there are people in this painting."
"Sure, sure," said Trish impatiently. "But they're tiny and you don't really get to know them. Now here we have a real portrait. Our artist made this portrait of his doctor. Dr. Gachet. See how he captures Gachet's mood and personality?
"So back to our painting. What's the main subject? Is it a...
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