row_id,order_date,format_hint,amount
R01,2026-8-1,YYYY-M-D,12000
R02,08/02/2026,MM/DD/YYYY,18000
R03,2026.08.03,YYYY.MM.DD,15000
R04,2026/08/04,YYYY/MM/DD,22000
R05,08/05/2026,MM/DD/YYYY,17000
R06,2026-08-06,YYYY-MM-DD,13000
R07,07/08/2026,UNKNOWN,19000
R08,,MISSING,11000