from_stop_id,to_stop_id,transfer_type,min_transfer_time
1129674,1129674,1,
1145534,1194193,1,
1194193,1145534,1,
1194193,1194193,1,
1202026,1202026,1,
1204199,1231395,1,
1212728,1212728,1,
1231395,1204199,1,
1231839,1231839,1,
1747045,1747045,1,
