<http://schema.org/description>
"In a recent survey of blind London youth, about half of the participants stated that they were uncomfortable using the Underground system. With that in mind, the Royal London Society for Blind People partnered with the ustwo design firm to create a prototype guidance system known as wayfindr.\r\n"^^<http://www.w3.org/2001/XMLSchema#string>
<http://newatlas.com/wayfindr-london-underground-blind-ibeacon-navigation/33290/>