CREATE TABLE table_33861 ("Pos." FLOAT, "Mark" CLOB, "Athlete" CLOB, "Venue" CLOB, "Date" CLOB)

Which athlete played at the Birmingham venue?
SELECT "Athlete" FROM table_33861 WHERE "Venue" = 'birmingham'
SELECT "Athlete" FROM "table_33861" WHERE "Venue" = 'birmingham'