ราคาตั๋วจากเดนเวอร์ไปบอสตัน 7 25 1991 มีค่าใช้จ่ายเท่าไรไม่จำเป็นต้องใช้ตารางทั้งหมด
what is the cost of a ticket going from DENVER to BOSTON 7 25 1991It is not neccessary to use all the tables.
 month:  month_number [ int]  month_name [ text] 
SELECT DISTINCT fare.fare_id FROM airport_service AS AIRPORT_SERVICE_0, airport_service AS AIRPORT_SERVICE_1, city AS CITY_0, city AS CITY_1, date_day, days, fare, fare_basis WHERE (CITY_1.city_code = AIRPORT_SERVICE_1.city_code AND CITY_1.city_name = 'BOSTON' AND date_day.day_number = 25 AND date_day.month_number = 7 AND date_day.year = 1991 AND days.day_name = date_day.day_name AND fare_basis.basis_days = days.days_code AND fare.fare_basis_code = fare_basis.fare_basis_code AND fare.to_airport = AIRPORT_SERVICE_1.airport_code) AND CITY_0.city_code = AIRPORT_SERVICE_0.city_code AND CITY_0.city_name = 'DENVER' AND fare.from_airport = AIRPORT_SERVICE_0.airport_code