Question: What country granted citizenship to the winning pair skating team of the 1971 Prize of Moscow News?

Context paragraphs:
Kristīne Gaile: Kristīne Gaile (born 26 January 1997) with her twin sister Ieva Gaile are Latvian figure skaters.  She was born in Jelgava, Latvia, where she started her skating career at the age of 4.  After two years she switched her coaches and started training in Ventspils, Latvia.  She mainly skates in the ladies singles category, but in 2012 she and her twin sister were part of Latvian Synchronized skating team "Amber" and they participated in the World Synchronized Skating Championship 2012 (WSSC).  In 2015 she switched coaches and started training in Jelgava, Latvia.  She rejoined Synchronized skating team "Amber" in 2015.  "Amber" is only Synchronized Skating team in Latvia and since 2012 is competing in ISU competitions, and World Championships.

1984 Prize of Moscow News: The 1984 Prize of Moscow News was the 19th edition of an international figure skating competition organized in Moscow, Soviet Union.  It was held December 5–9, 1984.  Medals were awarded in the disciplines of men's singles, ladies' singles, pair skating and ice dancing.  The men's category was won by European champion Alexandre Fadeev, who would end his season with the world title.  The ladies' gold medal went to Olympic medalist Kira Ivanova, winning her fourth Prize of Moscow News title.  Olympic medalists Larisa Selezneva / Oleg Makarov took the pairs' title, earning their second win at the Prize of Moscow News.  In the ice dancing category, Olympic bronze medalists Marina Klimova / Sergei Ponomarenko defeated the Olympic silver medalists Natalia Bestemianova / Andrei Bukin.

1982 Prize of Moscow News: The 1982 Prize of Moscow News was the 17th edition of an international figure skating competition organized in Moscow, Soviet Union.  It was held December 1–5, 1982.  Medals were awarded in the disciplines of men's singles, ladies' singles, pair skating and ice dancing.

1971 Prize of Moscow News: The 1971 Prize of Moscow News was the sixth edition of an international figure skating competition organized in Moscow, Soviet Union.  It was held November 25–28, 1971.  Medals were awarded in the disciplines of men's singles, ladies' singles, pair skating and ice dancing.  Soviets swept the men's podium, led by Sergei Chetverukhin.  The ladies' category was won by Marina Titova, who took the title for the second consecutive year.  Olympic champions Ludmila Belousova / Oleg Protopopov won the pairs' title, defeating two pairs who had beaten them a year earlier.  World champions Lyudmila Pakhomova / Alexander Gorshkov took gold in the ice dancing event for the third consecutive year.

1979 Prize of Moscow News: The 1979 Prize of Moscow News was the 14th edition of an international figure skating competition organized in Moscow, Soviet Union.  It was held November 28 – December 1, 1979.  Medals were awarded in the disciplines of men's singles, ladies' singles, pair skating and ice dancing.

1980 Prize of Moscow News: The 1980 Prize of Moscow News was the 15th edition of an international figure skating competition organized in Moscow, Soviet Union.  It was held December 10–14, 1980.  Medals were awarded in the disciplines of men's singles, ladies' singles, pair skating and ice dancing.

Ludmila Belousova: Ludmila Yevgenyevna Belousova (Russian: Людмила Евгеньевна Белоусова ; 22 November 1935 – 29 September 2017) was a Russian pair skater who represented the Soviet Union.  With her partner and husband Oleg Protopopov she was a two-time Olympic champion (1964, 1968) and four-time World champion (1965–1968).  In 1979 the pair defected to Switzerland and became Swiss citizens in 1995.  They continued to skate at ice shows and exhibitions through their seventies.

1981 Prize of Moscow News: The 1981 Prize of Moscow News was the 16th edition of an international figure skating competition organized in Moscow, Soviet Union.  It was held December 9–13, 1981.  Medals were awarded in the disciplines of men's singles, ladies' singles, pair skating and ice dancing.

1983 Prize of Moscow News: The 1983 Prize of Moscow News was the 18th edition of an international figure skating competition organized in Moscow, Soviet Union.  It was held November 23–27, 1983.  Medals were awarded in the disciplines of men's singles, ladies' singles, pair skating and ice dancing.

1987 Prize of Moscow News: The 1987 Prize of Moscow News was the 22nd edition of an international figure skating competition organized in Moscow, Soviet Union.  It was held November 11–15, 1987.  Medals were awarded in the disciplines of men's singles, ladies' singles, pair skating and ice dancing.  The men's title went to World champion Alexandre Fadeev, winning the Prize of Moscow News for the fourth time.  Cindy Bortz, moving up to the senior level after winning the world junior title, won the ladies' category.  Ekaterina Gordeeva / Sergei Grinkov, who would win the Olympic gold medal later in the season, took the pairs' title ahead of 1984 Olympic champions Elena Valova / Oleg Vasiliev.  The ice dancing title was won by Marina Klimova / Sergei Ponomarenko, who would end their season with an Olympic silver medal.

Supporting paragraphs: 1971 Prize of Moscow News Ludmila Belousova
Answer: Switzerland