CREATE TABLE "semi_finalists" (
  "season" text,
  "season_premiere" text,
  "season_finale" text,
  "winner" text,
  "runner_up" text,
  "number_of_contestants" real,
  "winner_s_country" text,
  "runner_up_s_country" text
);

Question: How many contestants were there on March 1, 2009 during the season premiere?
SQL: SELECT SUM("number_of_contestants") FROM "semi_finalists" WHERE "season_premiere"='march 1, 2009';

Question: What season had more than 12 contestants in which greydis gil won?
SQL: SELECT "season" FROM "semi_finalists" WHERE "number_of_contestants">12 AND "winner"='greydis gil';

Question: How many contestants were there in a season where alejandra espinoza won?
SQL: SELECT COUNT("number_of_contestants") FROM "semi_finalists" WHERE "winner"='alejandra espinoza';

Question: What season's premiere had puerto rico winning on May 20, 2012?
SQL: SELECT "season_premiere" FROM "semi_finalists" WHERE "winner_s_country"='puerto rico' AND "season_finale"='may 20, 2012';

Question: What season had mexico as the runner up with melissa marty winning?
SQL: SELECT "season" FROM "semi_finalists" WHERE "runner_up_s_country"='mexico' AND "winner"='melissa marty';