CREATE TABLE "achievements" (
  "year" real,
  "tournament" text,
  "venue" text,
  "result" text,
  "extra" text
);

Question: How often are the Olympic games hosted?
SQL: SELECT AVG("year") FROM "achievements" WHERE "tournament"='olympic games';

Question: Where was the 1984 Olympics hosted?
SQL: SELECT "tournament" FROM "achievements" WHERE "year"=1984;