CREATE TABLE "stage_results" (
  "date" text,
  "course" text,
  "distance" text,
  "type" text,
  "winner" text
);

Question: Who was the winner with a mountain stage type on 22 May?
SQL: SELECT "winner" FROM "stage_results" WHERE "type"='mountain stage' AND "date"='22 may';

Question: Which course had a mountain stage type on 3 June?
SQL: SELECT "course" FROM "stage_results" WHERE "type"='mountain stage' AND "date"='3 june';

Question: What was the course type on 22 May?
SQL: SELECT "type" FROM "stage_results" WHERE "date"='22 may';