<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/DiscussionForumPosting>
<http://www.gpspower.net/garmin-maps/113852-garmin-bluechart-g2-vision-southwest-florida-chart-vus011r-up-v2013-5-v15-00-a-3.html?s=449e6ad7d3dcd67ae0ea29fe53f43105>