using uCalcSoftware;

var uc = new uCalc();
var t = uc.NewTransformer();
// Pattern: "Set" followed by (Color OR (Size followed by Big/Small))
t.FromTo("Set {prop: Color | Size { Big | Small } }", "Property: {prop}");

Console.WriteLine(t.Transform("Set Color"));
Console.WriteLine(t.Transform("Set Size Big"));
Console.WriteLine(t.Transform("Set Size Small"));