Table:
text: Nordic skiing
Women's 10 km
Women's 10 km
Winner Country Winter_Olympics FIS_Nordic_World_Ski_Championships Holmenkollen
Ljubov Kozyreva Soviet Union 1956 1954, 1956 1955
Klavdija Bojarskikh Soviet Union 1964 1964, 1966 1965, 1966
Toini Gustafsson Sweden 1968 1968 1960, 1967, 1968
Galina Kulakova Soviet Union 1972 1972, 1974 1970, 1979
Raisa Smetanina Soviet Union 1976 1976 1975

Question: In which country did the 1972 Nordic Skiing Olympics take place?

Question: What is the year for Nordic skiing at the Olympic Winter Games when the 1976 Women's 10 km Nordic World Ski Championships are held?

Question: What is the earliest Winter Olympics if the 1976 Nordic World Ski Championships is the women's 10km?

Question: What is the Women's Nordic Winter Olympics 10km if the country is the Soviet Union and the Holmenkollen is 1970, 1979?