question: Where was the director of film The Wonderful Land Of Oz born?
context: [["Frank Joslyn Baum", ["Frank Joslyn Baum( December 3, 1883 \u2013 December 2, 1958) was an American lawyer, soldier, writer, and film producer, and the first president of The International Wizard of Oz Club.", "He is best known as the author of\" To Please a Child\"( a biography of his father, L. Frank Baum)( 1962) and\" The Laughing Dragon of Oz\"( 1936).", "He was involved in the production of\" Wizard of Oz\"( 1925), and\" The Wizard of Oz\"( 1933), for which he also received writing credit, after which he sold\" The Wonderful Wizard of Oz\" film rights to Samuel Goldwyn.", "His attempt to trademark the Oz name distanced him from the rest of his family.", "In addition,\" To Please a Child\" has been suspect since before it was published, as most of his family refused to confirm any details about his father's life, leading Baum to fabricate some details."]], ["Lion of Oz", ["Lion of Oz is a 2000 animated film set before the 1900 children's novel\" The Wonderful Wizard of Oz\".", "It tells the story of how the Cowardly Lion, formerly part of the Omaha Circus, came to be in Oz and how he stopped the Wicked Witch of the East from getting the Flower of Oz.", "It is based upon the 1995 book\" Lion of Oz and the Badge of Courage\" by Roger S. Baum( great- grandson of L. Frank Baum, the original author of the Oz books)."]], ["Barry Mahon", ["Barry Mahon, born Jackson Barrett Mahon (February 5, 1921, Bakersfield, California \u2013 December 4, 1999, Las Vegas, Nevada), was an American film director, cinematographer and producer."]], ["The Wonderful Wizard of Oz (1975 film)", ["The Wonderful Wizard of Oz is a feature length 115 minute film.", "It was produced by Teaching Resource Films in 1975.", "It is an adaptation of the 1900 children's novel\" The Wonderful Wizard of Oz\", written by L. Frank Baum.", "It was a color film made in the United States, and has additional writing credits given to Katherine Jose and Irene Lewis.", "It is a collection of filmstrips narrated on records."]], ["Land of Oz (disambiguation)", ["The Land of Oz is a fictional country first introduced in L. Frank Baum's novel\" The Wonderful Wizard of Oz\".", "Land of Oz or The Land of Oz may also refer to:"]], ["William Wallace Denslow", ["William Wallace Denslow( May 5, 1856 \u2013 March 29, 1915), professionally W. W. Denslow, was an American illustrator and caricaturist remembered for his work in collaboration with author L. Frank Baum, especially his illustrations of\" The Wonderful Wizard of Oz\".", "Denslow was an editorial cartoonist with a strong interest in politics, which has fueled political interpretations of\" The Wonderful Wizard of Oz\"."]], ["The Wonderful Wizard of Oz (disambiguation)", ["The Wonderful Wizard of Oz is a fantasy novel written by L. Frank Baum.", "The Wonderful Wizard of Oz may also refer to:"]], ["Michael Patrick Hearn", ["Michael Patrick Hearn is an American literary scholar as well as a man of letters specializing in children's literature and its illustration.", "His works include \"The Annotated Wizard of Oz\" (1971/2000), \"The Annotated Christmas Carol\" (1977/2003), and \"The Annotated Huckleberry Finn\" (2001).", "He considers the three most quintessential American novels to be \"Moby-Dick\" by Herman Melville, \"The Wonderful Wizard of Oz\" by L. Frank Baum, and \"The Adventures of Huckleberry Finn\" by Mark Twain.", "He is an expert on L. Frank Baum and is currently writing a biography about him, which sets forth to correct the numerous errors in previous biographies, many based on Frank Joslyn Baum's out of print and largely mythological \"To Please a Child\".", "As an Oz and L. Frank Baum scholar, he also edited \"The Critical Heritage Edition of the Wizard of Oz\" for Schocken Books (1986), wrote the introduction to the first published version of the screenplay of \"The Wizard of Oz (1939 film)\".", "He appears in the documentaries \"Oz: the American Fairyland\" and \"Matilda Joslyn Gage\" (1983), credited as an \"Authority on L. Frank Baum\".", "He gave the keynote address at the Centennial convention of \"The Wonderful Wizard of Oz\" mounted by The International Wizard of Oz Club, and often makes public appearances in which he lectures on Baum."]], ["The Wonderful Land of Oz", ["The Wonderful Land of Oz is a 1969 film directed by Barry Mahon.", "It is a low budget but faithful adaptation of the 1904 novel \"The Marvelous Land of Oz\" by L. Frank Baum."]], ["Ruth Plumly Thompson", ["Ruth Plumly Thompson( 27 July 1891 \u2013 6 April 1976) was an American writer of children's stories, best known for writing many novels placed in Oz, the fictional land of L. Frank Baum's classic children's novel\" The Wonderful Wizard of Oz\" and its sequels."]]]
supporting_facts: [["The Wonderful Land of Oz", 0], ["Barry Mahon", 0]]
evidences: [["The Wonderful Land of Oz", "director", "Barry Mahon"], ["Barry Mahon", "place of birth", "Bakersfield, California"]]
answer: Bakersfield, California