CREATE TABLE round (round_id NUMBER, member_id NUMBER, decoration_theme CLOB, rank_in_round NUMBER)
CREATE TABLE member (member_id NUMBER, name CLOB, country CLOB, college_id NUMBER)
CREATE TABLE college (college_id NUMBER, name CLOB, leader_name CLOB, college_location CLOB)

Show the most common country across members.
SELECT country FROM member GROUP BY country ORDER BY COUNT(*) DESC LIMIT 1
SELECT "country" FROM "member" GROUP BY "country" ORDER BY COUNT(*) DESC FETCH FIRST 1 ROWS ONLY