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

Question: What tournament since 1973 has a result of 1st?
SQL: SELECT "tournament" FROM "achievements" WHERE "result"='1st' AND "year">1973;

Question: In what tournament was there an extra of 400 m hurdles?
SQL: SELECT "tournament" FROM "achievements" WHERE "extra"='400 m hurdles';

Question: What was the Result in Year 1973?
SQL: SELECT "result" FROM "achievements" WHERE "year"=1973;

Question: In which year was the Tournament of european indoor championships played where the Extra was 800 m and the Result was 2nd?
SQL: SELECT "year" FROM "achievements" WHERE "extra"='800 m' AND "tournament"='european indoor championships' AND "result"='2nd';