These are some sample ideas for how to do an hcard MediaWiki extension.

 <hcard org="Ouzeri" street-address="4690 Rue St. Denis" extended-address="one block north of Avenue Mont Royal"       tel="845-1336">    Tu-Th 5PM-1AM, F-Sa 12PM-2AM. Fine Greek dining, great selection of ouzos and Greek wines. Stylish and modern.    Try the flambé cheese hors d'oeuvre -- it's dramatic. $25-$35 (prix fixe menu on Friday and Saturday).  </hcard>