diff --git a/chap5_essential_language_features/automatically_implemented_properties/Program.cs b/chap5_essential_language_features/automatically_implemented_properties/Program.cs
index 41a85ff..c58a3da 100644
--- a/chap5_essential_language_features/automatically_implemented_properties/Program.cs
+++ b/chap5_essential_language_features/automatically_implemented_properties/Program.cs
@@ -21,11 +21,16 @@ namespace automatically_implemented_properties
     public class Product
     {
         private string name;
+        
+        public int ProductID { get; set; }
 
         public string Name
         {
-            get { return name; }
+            get { return ProductID + name; }
             set { name = value; }
         }
+        public string Description { get; set; }
+        public decimal Price { get; set; }
+        public string Category { set; get; }
     }
 }
\ No newline at end of file