What are foreign slips

The Foreign slip is where you can foreign income, pension, and other foreign amounts in TurboTax. It's not a real CRA slip, it's a page we put in TurboTax to make reporting foreign amounts easier.

In Turbo Tax.  Under T-Slips / Federal / Foreign.  Under the Source Country, there are three options:  USA, Country #2 and Country #3.  What falls under Country #2 and Country #3.  I am trying to determine which I use for a pension income from the Netherlands.  

You can choose Country #2.