CREATE TABLE table_203_299 (id NUMBER, "year" NUMBER, "competition" CLOB, "venue" CLOB, "position" CLOB, "notes" CLOB)

list the competitions that have the same relay as world championships from athens , greece .
SELECT "competition" FROM table_203_299 WHERE id <> (SELECT id FROM table_203_299 WHERE "competition" = 'world championships' AND "venue" = 'athens, greece') AND "notes" = (SELECT "notes" FROM table_203_299 WHERE "competition" = 'world championships' AND "venue" = 'athens, greece')
SELECT "competition" FROM "table_203_299" WHERE "id" <> (SELECT "id" FROM "table_203_299" WHERE "competition" = 'world championships' AND "venue" = 'athens, greece') AND "notes" = (SELECT "notes" FROM "table_203_299" WHERE "competition" = 'world championships' AND "venue" = 'athens, greece')