<http://schema.org/description>
"Navizon I.T.S. makes it easy to pinpoint Wi-Fi devices anywhere its listening nodes are installed."^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.technologyreview.com/s/427687/if-you-have-a-smart-phone-anyone-can-now-track-your-every-move/>