CREATE TABLE "leadership_classification" (
  "stage" real,
  "winner" text,
  "general_classification" text,
  "mountains_classification" text,
  "points_classification" text,
  "sprints_classification" text,
  "team_classification" text
);

Question: If the mountains classification is Mathias Frank, and the General Classification is Fabian Cancellara, what is the Points classification?
SQL: SELECT "points_classification" FROM "leadership_classification" WHERE "general_classification"='Fabian Cancellara' AND "mountains_classification"='Mathias Frank';

Question: If the stage is smaller than 5.0, and the points classification is by Marco Marcato, who is the General classification by?
SQL: SELECT "general_classification" FROM "leadership_classification" WHERE "points_classification"='Marco Marcato' AND "stage"<5.0;

Question: How many different people had a General Classification on Stage 5?
SQL: SELECT COUNT("general_classification") FROM "leadership_classification" WHERE "stage"=5;

Question: How many times was Robert Gesink a winner?
SQL: SELECT COUNT("mountains_classification") FROM "leadership_classification" WHERE "winner"='Robert Gesink';

Question: If the winner is Rui Costa, who made the mountains classification?
SQL: SELECT "mountains_classification" FROM "leadership_classification" WHERE "winner"='Rui Costa';