question: Are Bob Lurtsema and Dirk Wittenborn of the same nationality?
context: [["Lars Hinneburg", ["Lars Hinneburg( born 15 June 1965 in Rostock, Mecklenburg- Vorpommern) is a former freestyle swimmer from East Germany, who competed for his native country at the 1988 Summer Olympics in Seoul, South Korea.", "There he won the bronze medal in the men's 4\u00d7100 m freestyle relay, together with Steffen Zesner, Thomas Flemming, and Dirk Richter."]], ["Dirk Wittenborn", ["Dirk Wittenborn( born 1952 in New Haven, Connecticut) is an American screenwriter and novelist."]], ["Bob Lurtsema", ["Robert Ross Lurtsema( born March 29, 1942) is a former American football defensive end in the National Football League for the Minnesota Vikings, New York Giants, and Seattle Seahawks.", "He played in two Super Bowls with Vikings( Super Bowl VIII in 1974 and Super Bowl IX in 1975).", "Lurtsema played college football at Michigan Technological University where he also led the basketball team.", "During the 1970s and 1980s, Lurtsema could often be seen in TCF Bank( TCF Savings and Loan) TV commercials.", "He formerly owned Benchwarmer Bob's Sports Cafe, with two locations in the Twin Cities.", "He pitched for a season with the Minnesota Norseman semi- pro softball team.", "He was also seen playing the part of a blatantly biased referee in the American Wrestling Association during its last year, most famously in a match between The Trooper and Mike Enos.", "His character states he is in the Trooper's corner and repeatedly helps the trooper during the match, and the bias is discussed by the announcers after the match.", "At one of the final AWA shows, AWA Twin Wars'90 on May 5, 1990, Lurtsema teamed with Brad Rheingans and the Trooper and defeated Tully Blanchard and the Destruction Crew."]], ["The Lucky Ones (film)", ["The Lucky Ones is a 2008 American comedy- drama directed by Neil Burger.", "The screenplay by Burger and Dirk Wittenborn focuses on three United States Army soldiers who find themselves drawn together by unforeseen circumstances."]], ["Josiah Leming", ["Josiah Leming( born March 26, 1989) is an American singer- songwriter originally from Morristown, Tennessee.", "At the age of 17, Leming dropped out of high school and began traveling across the United States to play shows while living out of his car.", "This eventually caught the eye of executives at Warner Brothers Records who signed him to his first major label record deal in 2008.", "Leming's debut album,\" Come On Kid\", from Warner Bros. came out September 13, 2010.", "His main influences are Bob Dylan, Leonard Cohen, Ryan Adams and The Rolling Stones."]], ["Antonio Bido", ["Antonio Bido( sometimes credited as Tony B. Dodd) is an Italian film director.", "Bido is known for such films as\" Watch Me When I KillBlue Tornado\" with Patsy Kensit, David Warner and Dirk Benedict, and\" Bloodstained Shadow\"."]], ["David Ji", ["David Longfen Ji is an American businessman who co-founded Apex Digital, an electronics manufacturer.", "In 2004, he was arrested in China following a dispute with Sichuan Changhong Electric, a supplier owned by the city of Mianyang and the province of Sichuan.", "Changhong accused him of defrauding them through bad checks.", "Ji was taken, according to an account by his lawyer, to the senior management and told, \"I decide whether you live or die.\"", "He has been held in China without charges.", "Ji's case highlighted an \"implicit racism\" in dealings with American businessmen.", "As a U.S. citizen he was not granted the same treatment by authorities as non-ethnically Chinese businessmen sharing the same nationality."]], ["Pharmakon (novel)", ["Pharmakon is a 2008 novel written by the author Dirk Wittenborn.", "Though fictional, it was greatly influenced by Wittenborn's relationship with his father, who was a psychopharmacologist."]], ["Marco Blume", ["Marco Blume is one of the most successful professional players.", "He has won two and one Masters as a member of team Phoenix Foundation, his teammates being Kai Budde and Dirk Baberowski.", "He also won a German individually national championship in 1999.", "Blume is currently the Head of Sportsbook at Pinnacle Sports."]], ["Odessa Sea", ["Odessa Sea is a novel by Clive Cussler and Dirk Cussler published November 15, 2016."]]]
supporting_facts: [["Bob Lurtsema", 0], ["Dirk Wittenborn", 0]]
evidences: [["Bob Lurtsema", "country of citizenship", "American"], ["Dirk Wittenborn", "country of citizenship", "American"]]
answer: yes