question: Which film has the director who is older than the other, Undercover Agent or What A Girl? 
context: [["What a Girl", ["What a Girl( German: So ein M\u00e4del) is a 1920 German silent film directed by Urban Gad and starring Hella Moja and Harry Liedtke and Ferry Sikla."]], ["Tillie Pierce", ["Tillie Pierce( also known as Matilda Alleman) was the author of\" At Gettysburg, or What A Girl Saw and Heard of the Battle: A True Narrative Published more than a quarter of a century after the Battle of Gettysburg, the book recounted her experiences during the American Civil War."]], ["Urban Gad", ["Peter Urban Gad( 12 February 1879 in Kors\u00f8r, Denmark \u2013 26 December 1947 in Copenhagen, Denmark) was a Danish film director.", "He directed 40 film between 1910 and 1927.", "His wife Asta Nielsen starred in 30 of his films, also in his d\u00e9but the famous film\" Afgrunden The Abyss\") from 1910.", "They moved to Germany in 1911 where Gad worked with Paul Davidson until 1922.", "His uncle was Paul Gauguin.", "His mother was the( in Denmark) very well known playwright and expert of good manners Emma Gad.", "His films include a German- language adaptation of Gerhart Hauptmann's play\" The Assumption of Hannele\", which Gad directed in 1922."]], ["Howard Bretherton", ["Howard Bretherton( 13 February 1890, Tacoma, Washington \u2013 12 April 1969, San Diego, California) was an American film director, film editor, and the father of film editor David Bretherton."]], ["Scotty Fox", ["Scott Fox is a pornographic film director who is a member of the AVN Hall of Fame."]], ["Elliot Silverstein", ["Elliot Silverstein( born August 3, 1927, in Boston, Massachusetts) is an American director, who is best known for being the director of the movie\" Cat Ballou\"( 1965)."]], ["Undercover Agent", ["Undercover Agent is a 1939 American drama film directed by Howard Bretherton and starring Russell Gleason, Shirley Deane, and J. M. Kerrigan.", "It was released on April 5, 1939."]], ["Dan Milne", ["Dan Milne is a British actor/ director who is possibly best known for his role in\" EastEnders\"."]], ["Logan Sandler", ["Logan Sandler is an American writer and director who is best known for his first feature film\" Live Cargo\"."]], ["Ben Palmer", ["Ben Palmer is a British film and television director who is known for being the director of\" Bo' Selecta\" and\" The Inbetweeners\"."]]]
supporting_facts: [["Undercover Agent", 0], ["What a Girl", 0], ["Howard Bretherton", 0], ["Urban Gad", 0]]
evidences: [["Undercover Agent", "director", "Howard Bretherton"], ["What a Girl", "director", "Urban Gad"], ["Howard Bretherton", "date of birth", "13 February 1890"], ["Urban Gad", "date of birth", "12 February 1879"]]
answer: What A Girl