query: SELECT title ,  rental_rate FROM film ORDER BY rental_rate DESC LIMIT 1
question: Which films have the most highest rental rate? And what rate?
query_toks: SELECT title , rental_rate FROM film ORDER BY rental_rate DESC LIMIT 1
query_toks_no_value: select title , rental_rate from film order by rental_rate desc limit value
question_toks: Which films have the most highest rental rate? And what rate?