I am trying to follow example from "An Elementary Introduction to the Wolfram Language", in particular the following: 
When I do so I get different output, for instance instead of the entity being displayed in a rounded border box like in book i get:
Entity["Country", "UnitedStates"]
And instead of the following outputting a flag graphic as in the book I get:
Entity["Country", "UnitedStates"]["Flag"]
I suspect this is some newbie mistake and would appreciate any helpful guidance.
