all flights from boston to washington dc after 5 pm on november eleventh economy class
O O O B-fromloc.city_name O B-toloc.city_name B-toloc.state_code B-depart_time.time_relative B-depart_time.time I-depart_time.time O B-depart_date.month_name B-depart_date.day_number B-economy I-economy