CREATE TABLE film_market_estimation (estimation_id NUMBER, low_estimate NUMBER, high_estimate NUMBER, film_id NUMBER, type CLOB, market_id NUMBER, year NUMBER)
CREATE TABLE film (film_id NUMBER, title CLOB, studio CLOB, director CLOB, gross_in_dollar NUMBER)
CREATE TABLE market (market_id NUMBER, country CLOB, number_cities NUMBER)

List all countries of markets in descending order of number of cities.
SELECT country FROM market ORDER BY number_cities DESC
SELECT "country" FROM "market" ORDER BY "number_cities" DESC