Identify non labor F&A expenditures

 We want to identify the transactions that pertain to non-labor transactions on expenditure inquiry screen. F&A calculation appears as a seperate line item below the main expenditure item. We see that most of the non-labor transactions have a supplier number column also filled in the expenditure inquiry - however, when this column is taken to determine the non-labor F&A it is not 100% accurate as the travel related F&A do not have the supplier number filled in.

How can we determine the labor F&A Vs non labor F&A. Do the AP interface tables help in this - which table or column name will help determine this . Please advise .