Question: the American Society of Magazine Editors in association with Columbia University Graduate School of Journalism sponsors what award won by "Harper's Magazine" whose editor is Ellen Rosenbush?
Sentence (from "The Best American Magazine Writing 2007"): The book includes an account by journalist William Langewiesche of "Vanity Fair" about a controversial United States military operation in Iraq, an investigative journalism article for "Rolling Stone" by Janet Reitman, a piece published in "Esquire" by C.J. Chivers about the Beslan school hostage crisis, and an article by Christopher Hitchens about survivors of Agent Orange.
Relevant evidence: No