CREATE TABLE climber (Climber_ID INT, Name TEXT, Country TEXT, Time TEXT, Points FLOAT, Mountain_ID INT)
CREATE TABLE mountain (Mountain_ID INT, Name TEXT, Height FLOAT, Prominence FLOAT, Range TEXT, Country TEXT)

What are the number of the countries of mountains with height bigger than 5000?, and sort names from high to low order.
SELECT Country, COUNT(Country) FROM mountain WHERE Height > 5000 GROUP BY Country ORDER BY Country DESC
SELECT "Country", COUNT("Country") FROM "mountain" WHERE "Height" > 5000 GROUP BY "Country" ORDER BY "Country" DESC NULLS LAST