<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.gpspower.net/garmin-maps/261952-bluechart-g2-vision-veu716l-mediterranean-central-v2011-5-v13-00-v2012-1-v13-51-a-2.html>