"from_stop_id","to_stop_id","from_route_id","to_route_id","from_trip_id","to_trip_id","transfer_type","min_transfer_time"
"2121-802836","2121-819998","","","","","0",""
"2121-803041","2121-803468","","","","","0",""
"2121-803468","2121-803041","","","","","0",""
"2121-819998","2121-802836","","","","","0",""
