Question: Gustave François Lussi was a figure skating coach whose students included the 1976 Olympic champion and 1976 World champion in what?

Context paragraphs:
Elizabeth Cain: Elizabeth Jane "Liz" Cain (born 29 December 1962 in Sydney) is an Australian former pair skater and current figure skating coach.  With brother Peter Cain, she is the 1976 World Junior bronze medalist and four time Australian national champion. Their highest placement at the World Figure Skating Championships was 12th, in 1977.  They competed in the 1980 Winter Olympics, finishing eleventh.  She is the mother and coach of Australian national champion Sean Carlow.

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.

Tatiana Tarasova: Tatiana Anatolyevna Tarasova (Russian:    , born 13 February 1947) is a Russian figure skating coach and national figure skating team adviser.  Tarasova has been coach to more world and Olympic champions than any other coach in skating history.  Her students have won a total of eight Olympic gold medals in three of the four Olympic figure skating disciplines, in addition to 41 gold medals at the European and World championships.

2014 Danish Figure Skating Championships: The 2014 Danish Figure Skating Championships (Danish: "Danske Mesterskaber 2014" ) were the Danish Figure Skating Championships of the 2013-2014 figure skating season.  Skaters competed in the disciplines of men's singles, ladies singles and ice dancing on the levels of Senior, Junior, Novice, and the pre-Novice levels of Debs, Springs, and Cubs for the title of national champion of Denmark.  The results of this competition were used to choose the teams to the 2014 Winter Olympic Games, the 2014 World Figure Skating Championships, the 2014 World Junior Figure Skating Championships, the 2013 European Figure Skating Championships, and the 2014 Nordic Figure Skating Championships.

Carlo Fassi: Carlo Fassi (20 December 1929 – 20 March 1997) was an Italian figure skater and international coach whose students included several World and Olympic champions.  As a single skater, he was the 1953 World bronze medalist, a two-time European champion (1953, 1954), and a ten-time Italian national champion (1945–54).

Jan Ullmark: Jan Ullmark is a figure skating coach who lives in Alberta, Canada.  He is a former Swedish national figure skating champion who now coaches at the Canmore Club in Canmore, Alberta, and The Royal Glenora Club in Edmonton, Alberta.  He coached 2002 Olympic Champions Jamie Salé and David Pelletier to their gold medal in the 2002 Olympic Winter Games figure skating scandal.  They began training with Ullmark in the summer of 2001 after leaving former skating coach Richard Gauthier.  Ullmark has also coached Anabelle Langlois and Patrice Archetto, Ben Ferreira, and Michael Slipchuk.

U.S. Figure Skating: U.S. Figure Skating is the national governing body for the sport of figure skating on ice in the United States.  It is recognized as such by the United States Olympic Committee "USOC" under the Ted Stevens Olympic and Amateur Sports Act and is the United States member of the International Skating Union ("ISU").  Although the name of the organization is “the United States Figure Skating Association” it is known as and conducts business under the name “U.S. Figure Skating.”  Founded in 1921, U.S. Figure Skating regulates and governs the sport and defines and maintains the standard of skating proficiency.  It specifies the rules for testing, competitions and all other figure skating related activities.  U.S. Figure Skating promotes interest and participation in the sport by assisting member clubs, skaters, and athletes, appointing officials, organizing competitions, exhibitions, and other figure skating pursuits, and offering a wide variety of programs.

Gustave Lussi: Gustave François Lussi (June 2, 1898 – June 23, 1993) was a figure skating coach.  His students include many champions, such as Dick Button, Tenley Albright, Maria Jelinek / Otto Jelinek, Donald Jackson, Alena Vrzáňová, Ronald Robertson, Ronald Ludington, Barbara Ann Scott, David Jenkins, Hayes Jenkins, Emmerich Danzer, Dorothy Hamill, John Misha Petkevich, and John Curry.

Takashi Mura: Takashi Mura (無良 隆志 , Mura Takashi , born November 11, 1960) is a Japanese figure skating coach and former competitor.  He is the 1976 World Junior silver medalist, winning a medal at the inaugural event.  He went on to win six medals in singles at the Japan Figure Skating Championships, and won it twice in pairs.  His highest placement as a singles skater at the World Figure Skating Championships was 12th, in 1982.  As a pair skater, he placed 12th with Yukiko Okabe in 1980, and 14th with Toshimi Ito in 1983.

Sheldon Galbraith: Sheldon William Galbraith, {'1': ", '2': ", '3': ", '4': "} (May 24, 1922 – April 14, 2015) was a Canadian figure skating coach whose students have won all three categories at World Championships (men's, ladies' and pairs').  His students also won Canada's first Olympic gold medals in the ladies' and pairs' competitions.

Supporting paragraphs: Gustave Lussi Dorothy Hamill
Answer: ladies' singles