query: SELECT title ,  directed_by FROM film WHERE film_id NOT IN (SELECT film_id FROM schedule)
question: What-all are the title and director of the films without any schedule?
query_toks: SELECT title , directed_by FROM film WHERE film_id NOT IN ( SELECT film_id FROM schedule )
query_toks_no_value: select title , directed_by from film where film_id not in ( select film_id from schedule )
question_toks: What-all are the title and director of the films without any schedule?