Database schema:

CREATE TABLE lists (
	user_id INTEGER -- example: ['88260493', '45204418'],
	list_id INTEGER NOT NULL -- example: ['2', '1'],
	list_title TEXT -- example: ['Films that made your kid sister cry', 'Headscratchers'],
	list_movie_number INTEGER -- example: ['5', '3'],
	list_update_timestamp_utc TEXT, 
	list_creation_timestamp_utc TEXT -- example: ['2009-11-11 00:02:21', '2009-11-11 00:05:11'],
	list_followers INTEGER -- example: ['5', '1'],
	list_url TEXT -- example: ['http://mubi.com/lists/headscratchers', 'http://mubi.com/lists/films-that-made-your-kid-sis'],
	list_comments INTEGER -- example: ['2', '3'],
	list_description TEXT -- example: ['<p>Films that need at least two viewings to really', '<p>Don’t be such a baby!!</p>\n<p><strong>bold</str'],
	list_cover_image_url TEXT -- example: ['https://assets.mubicdn.net/images/film/3822/image-', 'https://assets.mubicdn.net/images/film/4343/image-'],
	list_first_image_url TEXT -- example: ['https://assets.mubicdn.net/images/film/3822/image-', 'https://assets.mubicdn.net/images/film/4343/image-'],
	list_second_image_url TEXT -- example: ['https://assets.mubicdn.net/images/film/159/image-w', 'https://assets.mubicdn.net/images/film/506/image-w'],
	list_third_image_url TEXT -- example: ['https://assets.mubicdn.net/images/film/485/image-w', 'https://assets.mubicdn.net/images/film/142/image-w'],
	PRIMARY KEY (list_id), 
	CONSTRAINT fk_lists_lists_users FOREIGN KEY(user_id) REFERENCES lists_users (user_id)
)


CREATE TABLE lists_users (
	user_id INTEGER NOT NULL -- example: ['15264', '2385'],
	list_id INTEGER NOT NULL -- example: ['192287', '192313'],
	list_update_date_utc TEXT, 
	list_creation_date_utc TEXT -- example: ['2010-01-30', '2009-12-18'],
	user_trialist INTEGER -- example: ['0', '1'],
	user_subscriber INTEGER -- example: ['0', '1'],
	user_avatar_image_url TEXT -- example: ['https://graph.facebook.com/754931657/picture?width', 'https://assets.mubicdn.net/images/avatars/74983/im'],
	user_cover_image_url TEXT -- example: ['https://assets.mubicdn.net/images/cover_images/127', 'https://assets.mubicdn.net/images/cover_images/191'],
	user_eligible_for_trial TEXT -- example: ['0', '1'],
	user_has_payment_method TEXT -- example: ['0', '1'],
	PRIMARY KEY (user_id, list_id), 
	CONSTRAINT fk_lists_users_lists FOREIGN KEY(list_id) REFERENCES lists (list_id),
	CONSTRAINT fk_lists_users_lists FOREIGN KEY(user_id) REFERENCES lists (user_id)
)


CREATE TABLE movies (
	movie_id INTEGER NOT NULL -- example: ['2', '1'],
	movie_title TEXT -- example: ['Elementary Particles', 'La Antena'],
	movie_release_year INTEGER -- example: ['2006', '2007'],
	movie_url TEXT -- example: ['http://mubi.com/films/la-antena', 'http://mubi.com/films/elementary-particles'],
	movie_title_language TEXT -- example: ['en'],
	movie_popularity INTEGER -- example: ['23', '105'],
	movie_image_url TEXT -- example: ['https://images.mubicdn.net/images/film/1/cache-792', 'https://images.mubicdn.net/images/film/2/cache-512'],
	director_id TEXT -- example: ['131', '73'],
	director_name TEXT -- example: ['Oskar Roehler', 'Esteban Sapir'],
	director_url TEXT -- example: ['http://mubi.com/cast/esteban-sapir', 'http://mubi.com/cast/oskar-roehler'],
	PRIMARY KEY (movie_id)
)


CREATE TABLE ratings (
	movie_id INTEGER -- example: ['1066', '1067'],
	rating_id INTEGER -- example: ['15610495', '10704606'],
	rating_url TEXT -- example: ['http://mubi.com/films/pavee-lackeen-the-traveller-'],
	rating_score INTEGER -- example: ['2', '3'],
	rating_timestamp_utc TEXT -- example: ['2017-06-10 12:38:33', '2014-08-15 23:42:31'],
	critic TEXT -- example: ['Splendid debut. Whatever happened to Amma Asante?', 'I am a bit disappointed by this documentary film I'],
	critic_likes INTEGER -- example: ['0', '1'],
	critic_comments INTEGER -- example: ['0', '2'],
	user_id INTEGER -- example: ['85981819', '41579158'],
	user_trialist INTEGER -- example: ['0', '1'],
	user_subscriber INTEGER -- example: ['0', '1'],
	user_eligible_for_trial INTEGER -- example: ['0', '1'],
	user_has_payment_method INTEGER -- example: ['0', '1'],
	CONSTRAINT fk_ratings_movies FOREIGN KEY(movie_id) REFERENCES movies (movie_id),
	CONSTRAINT fk_ratings_lists_users FOREIGN KEY(user_id) REFERENCES lists_users (user_id),
	CONSTRAINT fk_ratings_ratings FOREIGN KEY(rating_id) REFERENCES ratings (rating_id),
	CONSTRAINT fk_ratings_ratings_users FOREIGN KEY(user_id) REFERENCES ratings_users (user_id)
)


CREATE TABLE ratings_users (
	user_id INTEGER -- example: ['68654088', '41579158'],
	rating_date_utc TEXT -- example: ['2012-10-02', '2017-06-10'],
	user_trialist INTEGER -- example: ['0', '1'],
	user_subscriber INTEGER -- example: ['0', '1'],
	user_avatar_image_url TEXT -- example: ['https://assets.mubicdn.net/images/avatars/74283/im', 'https://assets.mubicdn.net/images/avatars/27714/im'],
	user_cover_image_url TEXT -- example: ['https://assets.mubicdn.net/images/cover_images/149', 'https://assets.mubicdn.net/images/cover_images/378'],
	user_eligible_for_trial INTEGER -- example: ['0', '1'],
	user_has_payment_method INTEGER -- example: ['0', '1'],
	CONSTRAINT fk_ratings_users_lists_users FOREIGN KEY(user_id) REFERENCES lists_users (user_id)
)

Question: How many users who created a list in the February of 2016 were eligible for trial when they created the list? Indicate the user id of the user who has the most number of followers in his list in February of 2016.
Evidence: created a list in the February of 2016 refer to list_creation_date_utc BETWEEN 2/1/2016 and 2/29/2016; eligible for trial refers to user_eligible_for_trial = 1;


SQL:
SELECT T1.list_followers FROM lists AS T1 INNER JOIN lists_users AS T2 ON T1.user_id = T2.user_id AND T1.list_id = T2.list_id WHERE T2.list_creation_date_utc BETWEEN '2016-02-01' AND '2016-02-29' AND T2.user_eligible_for_trial = 1