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

Question: What was the extra info for the Commonwealth Games?
SQL: SELECT "extra" FROM "achievements" WHERE "tournament"='commonwealth games';

Question: What year was the Commonwealth Games?
SQL: SELECT SUM("year") FROM "achievements" WHERE "tournament"='commonwealth games';