Hi Denny,
I know everyone is still trying to organize this project but nevertheless we wanted to have some clarification about how WikiData will proceed in terms of representation of data embedded in wiki pages.
Several descriptor frameworks are available [0] and MediaWiki have seen some discussions about it before [1], [2] but since this project is about semantic data it would be nice to have directional guidance about how WikiData will proceed.
[0] http://manu.sporny.org/2011/uber-comparison-rdfa-md-uf/
[1] http://www.mediawiki.org/wiki/Parsoid/HTML5_DOM_with_microdata [2] http://thread.gmane.org/gmane.science.linguistics.wikipedia.wikitext/512
Cheers,
mwjames