left_col,right_col,sample_type
Month,Date,P
Month,Net Cash Flow,P
Month,Month Order,P
Month,Month 2,P
Order ID,Category,N
Order ID,Sub-Category,N
Ship Date,Month,N
Ship Date,Month End Characters,N
Ship Date,Month No.,N
Ship Date,Net Cash Flow,N
Ship Date,Month Order,N
Postal Code,City,N
Product ID,Order ID,N
Product ID,Product Name,N
Product ID,Month End Characters,N
Product Name,Row ID,N
Product Name,Product ID,N