| original_column_name,column_name,column_description,data_format,value_description | |
| card_id,credit card id,id number of credit card,integer, | |
| disp_id,disposition id,disposition id,integer, | |
| type,,type of credit card,text,"""junior"": junior class of credit card; | |
| ""classic"": standard class of credit card; | |
| ""gold"": high-level credit card" | |
| issued,,the date when the credit card issued ,date,in the form YYMMDD |