While we are at that, why not resurrect semantic [profile] instead of adding syntactic [prefix]? Chris
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Manu Sporny Sent: Wednesday, August 27, 2008 7:18 PM To: whatwg@lists.whatwg.org Subject: Re: [whatwg] RDFa Features 3. We needed a solution that would map cleanly to non-XML family languages. In hindsight, we should have picked @prefix instead of @xmlns to define prefixes, but that ended up going through. We're looking at alternative mechanisms, such as having a @prefix attribute, to declare prefixes in RDFa 1.1.