Question: How many books of poetry did the poet, who was published by Sheldon Dick, write?
Sentence (from "Edgar Lee Masters"): He is the author of "Spoon River Anthology", "The New Star Chamber and Other Essays", "Songs and Satires", "The Great Valley", "The Serpent in the Wilderness" "An Obscure Tale", "The Spleen", "Mark Twain: A Portrait", "Lincoln: The Man", and "Illinois Poems".
Relevant evidence: No