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Can people tell a computer-generated story from a human-authored one? How about a poem, or a playlist? Three new contests hope to find out. ImageZoo/Corbis hide caption

itoggle caption ImageZoo/Corbis

Isabel Leonard and Nathan Gunn star as Ada and Inman in the world premiere of Jennifer Higdon's Cold Mountain at the Santa Fe Opera. Ken Howard/Courtesy of the Santa Fe Opera hide caption

itoggle caption Ken Howard/Courtesy of the Santa Fe Opera