Hi Ben, > 1) @instanceof is the attribute name for rdf:type
+1 > 2) @id does *not* play a role in RDFa triple generation. +1 > 3) @rel, @rev, and @instanceof cause chaining (aka striping), whether or > not there is @href/@resource on the element. +1 -- Mark Birbeck, formsPlayer [EMAIL PROTECTED] | +44 (0) 20 7689 9232 http://www.formsPlayer.com | http://internet-apps.blogspot.com standards. innovation.