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

Question: What is the year of the tournament played at Melbourne, Australia?
SQL: SELECT AVG("year") FROM "achievements" WHERE "venue"='melbourne, australia';

Question: What is earliest year that had a 50km event with a 2nd place result played in London, United Kingdom?
SQL: SELECT MIN("year") FROM "achievements" WHERE "event"='50km' AND "result"='2nd' AND "venue"='london, united kingdom';

Question: What is the result of the World Race Walking Cup tournament played before the year 2010?
SQL: SELECT "result" FROM "achievements" WHERE "year">2010 AND "tournament"='world race walking cup';