question: Which country the director of film Secrets Of The Titanic is from?
context: [["Peter Levin", ["Peter Levin is an American director of film, television and theatre."]], ["Edward Kamuda", ["Edward Stephen", "Kamuda", "( November 10, 1939 \u2013 April 13, 2014) was an American historian who specialized in the study of the RMS Titanic.", "The Titanic sank on April 14, 1912, after striking an iceberg in the north Atlantic Ocean.", "Kamuda devoted much of his life to the preservation of the Titanic's legacy as the founder and president of the Titanic Historical Society.", "Much of his research focused on the biographies of the crew and passengers of the RMS Titanic.", "Kamuda co-founded the Titanic Historical Society on July 7, 1963, in Indian Orchard, Springfield, Massachusetts, with five other people.", "The society was originally called the\" Titanic Enthusiasts of America\", but Kamuda changed its name after a widow of a Titanic passenger questioned their\" enthusiasm\" for the disaster which killed 1,517 people, including her husband.", "Kamuda, who served as the president of the Titanic Historical Society, saw the society's membership grow to thousands during his lifetime.", "Under his leadership, the Titanic Historical Society became one of the world's leading centers for the research of the RMS Titanic, as well as its passengers and crew.", "Kamuda and other members of the society served as consultants for the 1997 film,\" Titanic\", directed by James Cameron.", "Kamuda helped Cameron with the historical details of the set and story.", "In return, Cameron cast Kamuda and his wife, society vice president Karen Kamuda, as extras in the film.", "Before shooting their scene, James Cameron told the assembled\" Titanic\" cast and crew,\" Because of these two people we are here today.\"", "The director also introduced Kamuda to several actors, telling them,\" Here's the man who made it all possible.\"", "Ed and Karen Kamuda can be seen in the background on the ship's promenade while Leonardo DiCaprio( who plays Jack Dawson) teaches Kate Winslet( Rose DeWitt Bukater) how to spit.", "Edward Kamuda, who was initially reluctant to appear onscreen in the film, later described the experience on set in a 1997 interview with\" The Republican To look at the books for 40 years and then to walk the decks of the ship- it was a dream come true.\"", "In 2012, Kamuda, on behalf of the Titanic Historical Society, presented the city of Springfield, Massachusetts, with the Titanic Centennial Memorial, a 10,000 pound, black granite monument to commemorate the 100th anniversary of the disaster.", "The Titanic Centennial Memorial, which was dedicated in the Oak Grove Cemetery, includes the names of two Springfield residents who died on the Titanic: Jane Carr, 47, a third class passenger and Milton C. Long, 29, a first class passenger and son of a Springfield mayor and judge.", "Ed Kamuda died from a long illness at his home on April 13, 2014, at the age of 74.", "He was survived by his wife, Karen Kamuda.", "Kamuda was buried at Oak Grove Cemetery in Springfield, Massachusetts."]], ["Ian Barry (director)", ["Ian Barry is an Australian director of film and TV."]], ["Secrets of the Titanic", ["Secrets of the Titanic is a documentary, made and filmed over 1985, 1986, and 1987.", "Produced by the National Geographic Society, it was a \"National Geographic\" Video exclusive, narrated by Martin Sheen, written and produced by Nicolas Noxon consisting of historical photos and footage of the massive steamer being built and launched, the discovery and exploration by Dr. Robert Ballard, and a look inside the wreck, not only the ship itself, but the human story and sinking theories."]], ["Tentacolino", ["Tentacolino, also known as In Search of the Titanic, is a 2004 North Korean- Italian animated film.", "It is a sequel to the 1999 Italian animated film\" The Legend of the Titanic\" directed by Kim Jun -ok."]], ["Michael Govan", ["Michael Govan( born 1963) is the director of the Los Angeles County Museum of Art since 2006.", "Prior to this, Govan worked as the director of the Dia Art Foundation in New York City."]], ["Ruth Weyher", ["Ruth Weyher( 28 May 1901 \u2013 27 January 1983) was a German film actress of the silent era.", "She appeared in 60 films between 1920 and 1930.", "She starred in the 1926 film\" Secrets of a Soul\", which was directed by Georg Wilhelm Pabst."]], ["Dana Blankstein", ["Dana Blankstein- Cohen( born March 3, 1981) is the director of the Israeli Academy of Film and Television.", "She is a film director, and an Israeli culture entrepreneur."]], ["John Farrell (businessman)", ["John Farrell is the director of YouTube in Latin America."]], ["Robert Ballard", ["Robert Duane Ballard (born June 30, 1942) is a retired United States Navy officer and a professor of oceanography at the University of Rhode Island who is most noted for his work in underwater archaeology: maritime archaeology and archaeology of shipwrecks.", "He is most known for the discoveries of the wrecks of the RMS \"Titanic\" in 1985, the battleship \"Bismarck\" in 1989, and the aircraft carrier in 1998.", "He discovered the wreck of John F. Kennedy's \"PT-109\" in 2002 and visited Biuku Gasa and Eroni Kumana, who saved its crew.", "He leads ocean exploration on E/V Nautilus."]]]
supporting_facts: [["Secrets of the Titanic", 1], ["Robert Ballard", 0]]
evidences: [["Secrets of the Titanic", "director", "Robert Ballard"], ["Robert Ballard", "country of citizenship", "United States"]]
answer: United States