Question: Which women's doubles had the accompanying Men's singles player Ville Lång?
SQL: SELECT "Women's doubles" FROM "2-12104319-1" WHERE "Men's singles" = 'Ville Lång';

Question: Which mixed doubles was featured in 2006?
SQL: SELECT "Mixed doubles" FROM "2-12104319-1" WHERE "Year" = 2006.0;

Question: Which women's doubles had the men's singles player Kenichi Tago?
SQL: SELECT "Women's doubles" FROM "2-12104319-1" WHERE "Men's singles" = 'Kenichi Tago';