Energy Plus Window Material values

I have a basic question about the EPWindowMaterials output of the “CallFromEPConstructionLibrary” component. If a material is named “FIXED WINDOW 2.00/0.40/0.31”, what do the numbers 2.00, 0.40, and 0.31 represent? I assume they are SHGC, U-value, and something else, but which is which?

Thanks!

Can’t tell about this name, but usually the 3rd value is Vt.
-A.