For those who have not heard of it, please refer to the following link.
http://netmba.com/marketing/market/target/

Now what l need to ask is that in those five diagrams, in the end of the page, the product listed vertically are distinct products like computers, apparels or could be distinct as well as different versions of the same product (with a different marketing mix)?

could be different version like phone plans are basically the same but are mixed and presented differently