Information: - Hockey Club Ambri-Piotta is a Swiss professional ice hockey club and a member of the National League A. The club was founded September 19, 1937 and is also known as "Bianco-Blu" (English: white and blues). Though they have never won the league championship, the club has not been relegated to the National League B since being promoted in 1985, the same year that saw the arrival of Dale McCourt. - Nolan Schaefer ( born January 15 , 1980 ) is a Canadian professional ice hockey goaltender currently an unrestricted free agent who was last under contract to HC Ambri - Piotta of the Swiss National League A ( NLA ) . - National League A (NLA) is a professional ice hockey league in Switzerland. It is the top tier of the Swiss hockey league system and of the two-tier National League. Prior to the 200708 season, the league was officially called Nationalliga A (German),. The NLA has the most attended hockey club in Europe, SC Bern, and is also the most attended league within the same continent, averaging 7,026 spectators for the 201516 season. - Dale Allen McCourt (born January 26, 1957) is a former NHL ice hockey forward. Dale began his junior hockey career with the Hamilton Red Wings in 197273. Two years later he was the team captain of the 1976 Memorial Cup champion Hamilton Fincups. In 1977 he led the team to the Hamilton Spectator Trophy. He was awarded the Red Tilson Trophy as "Most Outstanding Player" in the OHA, and voted CHL Player of the Year for his efforts. Dale was also awarded the William Hanley Trophy as the OHA's "Most Sportsmanlike Player" two consecutive years (197576, 197677). In the 1977 World Junior Ice Hockey Championships, McCourt scored 18 points, a Canadian record he shares with Brayden Schenn and one point more than Eric Lindros and Wayne Gretzky. - Schlittschuh Club Bern ("Ice-skating Club Bern" in English) is an ice hockey team based in Bern, Switzerland. They play in the National League A, it is the top tier of the Swiss hockey league system. For the 15th time in a row, the club is the most attended team in Europe for the 201516 season, averaging 16,145 spectators. - National League B or Nationalliga B (German) or Ligue Nationale B (French) is the second tier of the main professional ice hockey league in Switzerland, behind National League A. The winners of this league each season play a best-of-seven series against the bottom team of National League A and, if they win, they are promoted, while the National League A team is relegated to National League B. Given the information, choose the subject and object entities that have the relation of 'country of citizenship'.
Answer:
nolan schaefer , switzerland