from_stop_id,to_stop_id,transfer_type,min_transfer_time
2501993,2501993,1,
2501995,2501995,1,
2502145,2502145,1,
2733898,2733898,0,
2733899,2733899,0,
2733926,2733926,0,
2733928,2733928,0,
2733957,2733957,0,
4151619,4151619,1,
