<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.gpspower.net/garmin-discussions/269438-install-map-gpsmap-421s-via-sd-card.html?s=c183099e60267626fcb335f3b0b30f36>