<http://schema.org/bestRating>
"5"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.gpspower.net/igo-primo-software-tools/309561-igo-primo-2-4-9-6-29-341779-ans-25-oct-2013-a-5.html?s=b9deb784227b9394fd860f71eb6e957a>