CREATE TABLE "sport" (
  "club" text,
  "league" text,
  "sport" text,
  "venue" text,
  "established" real,
  "capacity" real
);

Question: What is the venue established after 1948?
SQL: SELECT "venue" FROM "sport" WHERE "established">1948;

Question: What is the league established before 1930 with the rayo vallecano club?
SQL: SELECT "league" FROM "sport" WHERE "established"<1930 AND "club"='rayo vallecano';

Question: What sport is the rayo vallecano club in?
SQL: SELECT "sport" FROM "sport" WHERE "club"='rayo vallecano';

Question: What sport is the cb estudiantes club in?
SQL: SELECT "sport" FROM "sport" WHERE "club"='cb estudiantes';