Question: At 1972 Prague Skate event, the ladie's title was won by a woman born in what year?

full_context: Document 1: 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.
Document 2: 1966 Prague Skate: The 1966 Prague Skate was a senior international figure skating competition held in Czechoslovakia in November 1966. Medals were awarded in the disciplines of men's singles, ladies' singles, pair skating, and ice dancing; future Olympic medalists won gold in the first three categories. In the men's event, Czechoslovakia's Ondrej Nepela defeated West German national champion Peter Krick and the Soviet Union's Sergei Chetverukhin on his way to his second Prague Skate title. Hana Mašková took the ladies' title for the second year in a row, outscoring Hungary's Zsuzsa Almassy and Austria's Elisabeth Nestler. The pairs' podium was filled by Germans, led by West Germany's Margot Glockshuber / Wolfgang Danne.
Document 3: Prague Skate: The Prague Skate (sometimes titled Golden Skate; from 1994: Czech Skate) is an international figure skating competition. It was a senior event from the 1960s to 1997, usually held in November or December in Prague. Medals were awarded in the disciplines of men's singles, ladies' singles, and pair skating. Since 1999, it is organized in some years as part of the ISU Junior Grand Prix series.
Document 4: Nancy Kerrigan: Nancy Ann Kerrigan (born October 13, 1969) is an American former figure skater. She won bronze medals at the 1991 World Championships and 1992 Winter Olympics, and a silver medal at the 1992 World Championships, before becoming the 1993 US National Champion.
Document 5: 1965 Prague Skate: The 1965 Prague Skate was a senior international figure skating competition held in Czechoslovakia in November 1965. Medals were awarded in the disciplines of men's singles, ladies' singles, pair skating, and ice dancing. Italy's Giordano Abbondati won the men's title ahead of the future Olympic champion, Ondrej Nepela of Czechoslovakia. Future Olympic medalist Hana Mašková took gold in the ladies' event by defeating Hungary's Zsuzsa Almássy and West Germany's Uschi Keszler. In ice dancing, Czechoslovakia's Jitka Babická / Jaromír Holan won the first of their two Prague Skate titles, defeating teams from West Germany and the United Kingdom.
Document 6: 1972 Prize of Moscow News: The 1972 Prize of Moscow News was the seventh edition of an international figure skating competition organized in Moscow, Soviet Union. It was held December 9–13, 1972. Medals were awarded in the disciplines of men's singles, ladies' singles, pair skating and ice dancing. Sergei Chetverukhin won the men's title for the third consecutive year. Canada's Cathy Lee Irwin took the ladies' title ahead of West Germany's Isabel de Navarre and the Soviet Union's Tatiana Oleneva. Irina Vorobieva / Alexander Vlasov defeated Olympic champions Ludmila Belousova / Oleg Protopopov for gold in the pairs' category. In the ice dancing category, world champions Lyudmila Pakhomova / Alexander Gorshkov won their fourth gold medal at the event.
Document 7: Jayne Torvill: Jayne Torvill, OBE (born 7 October 1957) is an English ice dancer. With Christopher Dean, she won a gold medal at the 1984 Winter Olympics and a bronze medal at the 1994 Winter Olympics.
Document 8: Dorothy Hamill: Dorothy Stuart Hamill (born July 26, 1956) is a retired American figure skater. She is the 1976 Olympic champion and 1976 World champion in ladies' singles.
Document 9: 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.
Document 10: Sonja Henie: Sonja Henie (8 April 1912 – 12 October 1969) was a Norwegian figure skater and film star. She was a three-time Olympic Champion (1928, 1932, 1936) in Ladies' Singles, a ten-time World Champion (1927–1936) and a six-time European Champion (1931–1936). Henie won more Olympic and World titles than any other ladies' figure skater. At the height of her acting career, she was one of the highest paid stars in Hollywood and starred in a series of box-office hits, including "Thin Ice" (1937), "My Lucky Star" (1938), "Second Fiddle" (1939) and "Sun Valley Serenade" (1941).
Document 11: Irina Rodnina: Irina Konstantinovna Rodnina (Russian: Ирина Константиновна Роднина ; ] , born 12 September 1949) is a Russian politician and figure skater, who is the only pair skater to win 10 successive World Championships (1969–78) and three successive Olympic gold medals (1972, 1976, 1980). She was elected to the State Duma in the 2007 legislative election as a member of President Vladimir Putin's United Russia party. As a figure skater, she initially competed with Alexei Ulanov and later teamed up with Alexander Zaitsev. She is the first pair skater to win the Olympic title with two different partners, followed only by Artur Dmitriev.
Document 12: 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.
Document 13: Sarah Docter: Sarah Beth Docter (born May 10, 1964) is a retired American speed skater. She won several U.S. national championships in the 1970s, and in 1978 she won U.S. national titles in both short track and long track. That year she went on to the world short-track championships, in which she won the 1500 m and 3000 m events and the overall competition. In 1980, she competed in all speed skating events at the 1980 Winter Olympics in Lake Placid, New York, with the best achievement of tenth place in the 3000 m. In addition to skating career, she is also a cyclist, and once took part in the World Cycling Championships.
Document 14: Nellie Kim: Nellie Vladimirovna Kim (Russian: Нелли Владимировна Ким ; born 29 July 1957) is a retired Soviet gymnast who won three gold medals and a silver medal at the 1976 Summer Olympics in Montreal, and two gold medals at the 1980 Summer Olympics. She was the second woman in Olympic history to earn a perfect 10 score and the first woman to score it on the vault and on the floor exercise, rivaling Nadia Comăneci, Ludmilla Tourischeva, and other strong competitors of the 1970s. Nellie Kim worked for a long time as a coach, training several national teams, and judged many major international competitions. As President of the Women's Artistic Gymnastics Technical Committee, she coordinates the introduction of new rules in women's gymnastics, as provided by the new "Code of Points", developed by the FIG in 2004–2005 and in effect since 2006. Her gymnastic appearances are remembered for "her strong feminine, temperamental and charismatic appeal".
Document 15: 1972 Prague Skate: The 1972 Prague Skate was a senior international figure skating competition held 11–12 November 1972 in Czechoslovakia. Medals were awarded in the disciplines of men's singles and ladies' singles. Gold in both categories went to skaters from the United States. Future Olympic champion Dorothy Hamill won the ladies' title ahead of West Germany's Gerti Schanderl and Canada's Daria Prychun. Gordon McKellen took the men's title while Zdeněk Pazdírek of Czechoslovakia and Jacques Mrozek of France took silver and bronze, respectively.
ground_truth: 1956