Question: What year was the Competition of World Junior Championships with a 20th (qf) position?
SQL: SELECT AVG("Year") FROM "2-11355945-1" WHERE "Competition" = 'World Junior Championships' AND "Position" = '20th (qf)';

Question: What was the notes of the 400 m event before 2004 with a position of 12th (h)?
SQL: SELECT "Notes" FROM "2-11355945-1" WHERE "Event" = '400 m' AND "Year" < 2004.0 AND "Position" = '12th (h)';

Question: Which venue had a note of 3:34.88 after 2003?
SQL: SELECT "Venue" FROM "2-11355945-1" WHERE "Year" > 2003.0 AND "Notes" = '3:34.88';

Question: What were the notes of the All-Africa Games before 2007?
SQL: SELECT "Notes" FROM "2-11355945-1" WHERE "Competition" = 'All-Africa Games' AND "Year" < 2007.0;

Question: Which event in 2007 had a position of 5th?
SQL: SELECT "Event" FROM "2-11355945-1" WHERE "Year" = 2007.0 AND "Position" = '5th';