CREATE TABLE "jersey_progress" (
  "stage" real,
  "winner" text,
  "general_classification" text,
  "points_classification" text,
  "mountains_classification" text,
  "combination_classification" text,
  "team_classification" text
);

Question: Name all the team clasification where the combination classification is mederic clain
SQL: SELECT "team_classification" FROM "jersey_progress" WHERE "combination_classification"='Mederic Clain';

Question: In how many stages did Jose Vicente Garcia Acosta won?
SQL: SELECT COUNT("stage") FROM "jersey_progress" WHERE "winner"='Jose Vicente Garcia Acosta';

Question: What is the minimum stage where Sergei Smetanine won?
SQL: SELECT MIN("stage") FROM "jersey_progress" WHERE "winner"='Sergei Smetanine';

Question: what is the minimum stage where mountains classification is aitor osa and aitor gonzález won?
SQL: SELECT MIN("stage") FROM "jersey_progress" WHERE "mountains_classification"='Aitor Osa' AND "winner"='Aitor González';