What is the most popular genre of film directed by directors?
Most popular genre indicates that the genre has the most number of movies
SELECT genre FROM movies2directors GROUP BY genre ORDER BY COUNT(movieid) DESC LIMIT 1
database name:db_id movielens
users table users Cols: user id dtype integer, age dtype text, user gender dtype text, occupation dtype text, 
directors table directors Cols: director id dtype integer, director quality dtype integer, average revenue dtype integer, 
actors table actors Cols: actor id dtype integer, actor gender dtype text, actor quality dtype integer, 
movies table movies Cols: movie id dtype integer, year dtype integer, is English dtype text, country dtype text, runningtime dtype integer, 
movies2actors table movies2actors Cols: movie id dtype integer, actor id dtype integer, cast number dtype integer, 
movies2directors table movies2directors Cols: movie id dtype integer, director id dtype integer, genre dtype text, 
u2base table u2base Cols: user id dtype integer, movie id dtype integer, rating dtype text, 
