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

Question: Who won on 3 june?
SQL: SELECT "winner" FROM "stage_results" WHERE "date"='3 june';

Question: Which date has a Race Leader of hermann buse ( ger ), and a Stage of 5?
SQL: SELECT "date" FROM "stage_results" WHERE "race_leader"='hermann buse ( ger )' AND "stage"='5';

Question: Which race Leader has a Stage of 7?
SQL: SELECT "race_leader" FROM "stage_results" WHERE "stage"='7';

Question: Which date has a Stage of 12?
SQL: SELECT "date" FROM "stage_results" WHERE "stage"='12';