CREATE TABLE "category_leadership_table" (
  "stage" real,
  "winner" text,
  "general_classification_ta_koszulka" text,
  "mountains_classification_klasyfikacja_g_rska" text,
  "intermediate_sprints_classification_klasyfikacja_najaktywniejszych" text,
  "points_classification_klasyfikacja_punktowa" text
);

Question: Who was the Stage 1 winner?
SQL: SELECT "winner" FROM "category_leadership_table" WHERE "stage"=1;

Question: Who won Stage 7?
SQL: SELECT "winner" FROM "category_leadership_table" WHERE "stage"=7;

Question: Who was the mountain classification winner in the stage won by Alessandro Ballan?
SQL: SELECT "mountains_classification_klasyfikacja_g_rska" FROM "category_leadership_table" WHERE "winner"='Alessandro Ballan';