CREATE TABLE table_name_9 (last_title VARCHAR, area_province VARCHAR, first_season VARCHAR)

Name the last title for greater buenos aires and first season of 1920
SELECT last_title FROM table_name_9 WHERE area_province = "greater buenos aires" AND first_season = "1920"
SELECT "last_title" FROM "table_name_9" WHERE "1920" = "first_season" AND "area_province" = "greater buenos aires"