+(deftest :s1 (slot-value (class-of mary) 'ho::user-name)
+ "Person")
+
+(deftest :s2 (slot-value (class-of mary) 'ho::user-name-plural)
+ "Persons")
+
+(deftest :s3 (slot-value (class-of home) 'ho::user-name-plural)
+ "Addresses")
+
+(deftest :s4 (slot-value (class-of mary) 'ho::description)
+ "A Person")