CREATE TABLE "stage_results" (
  "stage" text,
  "date" text,
  "route" text,
  "terrain" text,
  "length" text,
  "winner" text
);

Question: What was the terrain for stage 10 of the tour?
SQL: SELECT "terrain" FROM "stage_results" WHERE "stage"='10';

Question: Which stage took the tour through Boulogne-Billancourt?
SQL: SELECT "stage" FROM "stage_results" WHERE "route"='boulogne-billancourt';

Question: Who won at stage 22?
SQL: SELECT "winner" FROM "stage_results" WHERE "stage"='22';

Question: Who was the winner of stage 12?
SQL: SELECT "winner" FROM "stage_results" WHERE "stage"='12';