CREATE TABLE artist (country VARCHAR, artist_name VARCHAR)
CREATE TABLE song (artist_name VARCHAR)

Find the country of origin for the artist who made the least number of songs?
SELECT T1.country FROM artist AS T1 JOIN song AS T2 ON T1.artist_name = T2.artist_name GROUP BY T2.artist_name ORDER BY COUNT(*) LIMIT 1
SELECT "T1"."country" FROM "artist" AS "T1" JOIN "song" AS "T2" ON "T1"."artist_name" = "T2"."artist_name" GROUP BY "T2"."artist_name" ORDER BY COUNT(*) NULLS FIRST LIMIT 1