Table schema:
CREATE TABLE song (artist_name VARCHAR); CREATE TABLE artist (artist_name VARCHAR)

Question: Find the names and number of works of the three artists who have produced the most songs.
SQL: SELECT T1.artist_name, COUNT(*) FROM artist AS T1 JOIN song AS T2 ON T1.artist_name = T2.artist_name GROUP BY T2.artist_name ORDER BY COUNT(*) DESC LIMIT 3