ER flight
2023-05-17 22:50:49 4 举报ER
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has_traveller
arrival_datearrival_timedeparture_datedeparture_time
instance_of
seat_no
customer_idnameaddress
flight_instance
flight_idruns_on_days
has_status
station
customer
flight
has_schedule
flight_inst_idcapacitydate
arrival_daynoarrival_timedeparture_daynodeparture_time
station_idnamecountry
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