Taking a photo is of course another - you move the phone/camera/iDevice to see different content.
All of these works have at least slightly different contents.
Personally, I think there are much better ways to deliver additional, alternative or just different content!
Thus, in the context of these systems, a permalink may refer to different content over time.
So, it is quite possible to find different content within each of the issues listed.
A comic book was created based on the movie, but with some different historical content.
In this case, some or all of the above process is repeated, with different contents.
How to realize that a resource is replaced by another with the same name but different content?
Noon: 22nd Century has been published several times, with different contents.
But you hadn't reckoned on the different contents of two minds.