is `www.me.com/page.php` and `www.me.com/page.php?1` and `www.me.com/page.php?2` considered 3 unique URIs?

Question

From the page http://msdn.microsoft.com/en-us/magazine/dd315413.aspx: User agents interact with resources, and resources are anything that can be named and represented. Each resource can be addressed via a unique Uniform Resource Identifier (URI). is www.me.com/page.php and www.me.com/page.php?1 and www.me.com/page.php?2 considered 3 unique URIs ? I know they are interpreted as different urls. But are they unique in the sense according to the RESTful definition: each resource is accessed through a unique URI JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

The answer is they are unique URLs, but different URLs could refer to the same entity: This article might help: http://en.wikipedia.org/wiki/Uniform_Resource_Name URL's are resource locators, there is nothing to say they must point at different "things", they usually do, but not always. URN's are meant to be unique identifiers, but again, you could have two URNs pointing to the same book using different ID's