I haven't checked this but something like:
where $type <http://www.w3.org/2002/07/owl#sameAs>
where $creator $type 'email@example.com';
"rss_schemas" is the model which holds mappings from Dublic Core to other schemas. "rss_feeds" are any URLs like "http://www.intertwingly.net/blog/index.rdf", file or Kowari model.
Danny Ayers noted that in RDQL: "SELECT ?a, ?c WHERE (?a, <dc:title>, ?c)" will get you the subProperties as well (without have to specifically list it).
Zoe is one of the Open Source projects to be nominated to be included to go to Comdex.
I was going to totally stay away from coding this weekend.