12 12 17 is a date
09 30 2O17 is a unknown
09 30 2017 is a date
09 30 12017 is a unknown
123123123123123 is a unknown
1231231231231231 is a visa card
12312312312312312 is a unknown
456456456456 is a unknown
4564564564567 is a EAN-13 barcode
45645645645678 is a unknown
QW123456789WQ is a Royal Mail Track & Trace code