"from_stop_id","to_stop_id","transfer_type","min_transfer_time"
"1260-20703_01","1260-20703_02","1",""
"1260-20703_02","1260-20703_01","1",""
"1260-20704_01","1260-20704_02","1",""
"1260-20704_02","1260-20704_01","1",""
