instruction: list all flights on CO leaving SEATTLE on sunday after 1630
response: SELECT DISTINCT flight.flight_id FROM airport_service, city, date_day, days, flight WHERE ((date_day.day_number = 27 AND date_day.month_number = 8 AND date_day.year = 1991 AND days.day_name = date_day.day_name AND flight.departure_time > 1630 AND flight.flight_days = days.days_code) AND city.city_code = airport_service.city_code AND city.city_name = 'SEATTLE' AND flight.from_airport = airport_service.airport_code) AND flight.airline_code = 'CO'