Given the question: Information: - The 1976 Canada Cup was an international ice hockey tournament held September 215, 1976, in Ottawa, Toronto, Montreal, Winnipeg and Quebec City, Canada as well as in Philadelphia, United States. It was the first of five Canada Cup tournaments held between 1976 and 1991. It was organized by Alan Eagleson and sanctioned by the International Ice Hockey Federation (IIHF), Hockey Canada and the National Hockey League (NHL). It was a six-team, round robin tournament with a best-of-three final between the top two teams. Canada finished atop the standings and defeated Czechoslovakia in the final in two consecutive games. Bobby Orr was named the most valuable player of the tournament, and Viktor Zhluktov was the leading scorer. - Vladislav Aleksandrovich Tretiak, MSM (IPA: [trtjak]; born 25 April 1952) is a former goaltender for the Soviet Union national ice hockey team. Considered to be one of the greatest goaltenders in the history of the sport, he was voted one of six players to the International Ice Hockey Federation's (IIHF) Centennial All-Star Team in a poll conducted by a group of 56 experts from 16 countries. He is the current president of the Ice Hockey Federation of Russia and was the general manager of the Russian 2010 Winter Olympic team. - The 1981 Labatt Canada Cup was the second best-on-best ice hockey world championship and involved the world's top six hockey nations. Tournament games were held in Edmonton, Winnipeg, Montreal and Ottawa. The Soviet Union defeated Canada in a single game final to win its first title, while Soviet goaltender Vladislav Tretiak was named most valuable player. Canada's Wayne Gretzky led the tournament in scoring with 12 points. - Edmonton is the capital city of the Canadian province of Alberta. Edmonton is on the North Saskatchewan River and is the centre of the Edmonton Capital Region, which is surrounded by Alberta's central region. - Robert Gordon "Bobby" Orr, OC (born March 20, 1948) is a Canadian former professional ice hockey player, widely acknowledged as one of the greatest hockey players of all time. Orr used his ice skating speed, scoring, and play-making abilities to revolutionize the position of defenceman. He played in the National Hockey League (NHL) for 12 seasons, starting with 10 with the Boston Bruins followed by two with the Chicago Black Hawks. Orr remains the only defenceman to have won the league scoring title with two Art Ross Trophies. He holds the record for most points and assists in a single season by a defenceman. Orr won a record eight consecutive Norris Trophies as the NHL's best defenceman and three consecutive Hart Trophies as the league's most valuable player (MVP). Orr was inducted into the Hockey Hall of Fame in 1979 at age 31, the youngest to be inducted at that time. After his hockey career, he became a well-known scout for many professional teams. He also spends time talking to and mentoring young skaters. - Ice hockey is a contact team sport played on ice, usually in a rink, in which two teams of skaters use their sticks to shoot a vulcanized rubber puck into their opponent's net to score points. Ice hockey teams usually consist of six players each: one goaltender, and five players who skate up and down the ice trying to take the puck and score a goal against the opposing team. - Winnipeg is the capital and largest city of the province of Manitoba in Canada. It is located near the longitudinal centre of North America, at the confluence of the Red and Assiniboine Rivers. - Mats Stefan Waltin ( born October 7 , 1953 in Stockholm , Sweden ) is a retired professional ice hockey player and coach . Waltin played for Djurgardens IF Hockey and Sodertalje SK in the Elitserien . He was a member of the Swedish 1976 Canada Cup and 1981 Canada Cup teams . He is the current coach of Manglerud Star , Oslo Norway . - Toronto is the most populous city in Canada, the provincial capital of Ontario, and the centre of the Greater Toronto Area, the most populous metropolitan area in Canada. Growing in population, the 2011 census recorded a population of 2,615,060. As of 2015, the population is now estimated at 2,826,498, making Toronto the fourth-largest city in North America based on the population within its city limits. Toronto trails only Mexico City, New York City, and Los Angeles by this measure, while it is the fifth-largest (behind also Chicago) if ranked by the size of its metropolitan area . An established global city, Toronto is an international centre of business, finance, arts, and culture, and widely recognized as one of the most multicultural and cosmopolitan cities in the world. - In ice hockey, the goaltender is the player responsible for preventing the hockey puck from entering their team's net, thus preventing the opposing team from scoring. The goaltender usually plays in or near the area in front of the net called the "goal crease" (often referred to simply as " the crease" or "the net"). Goaltenders tend to stay at or beyond the top of the crease to cut down on the angle of shots. In today's age of goaltending there are two common styles, butterfly and hybrid (hybrid is a mix of the traditional stand-up style and butterfly technique). Because of the power of shots, the goaltender wears special equipment designed to protect the body from direct impact. The goalie is one of the most valuable players on the ice, as their performance can greatly change the outcome or score of the game. One-on-one situations, such as breakaways and shootouts, have the tendency to highlight a goaltender's pure skill, or lack thereof. Only one goaltender is allowed to be on the ice for each team at any given time. - The National Hockey League (NHL) is a professional ice hockey league currently composed of 31 member clubs. Of the 30 clubs currently playing, 23 are in the United States and 7 in Canada. Headquartered in New York City, the NHL is considered to be the premier professional ice hockey league in the world, and one of the major professional sports leagues in the United States and Canada. The Stanley Cup, the oldest professional sports trophy in North America, is awarded annually to the league playoff champion at the end of each season. After reading the paragraphs above, we are interested in knowing the entity with which 'mats waltin' exhibits the relationship of 'position played on team / speciality'. Find the answer from the choices below. Choices: - centre - defenceman - end - goaltender
The answer is:
defenceman