<http://schema.org/caption>
"The app-based system determines the shopper's location via the flickering of the overhead lights (Photo: &lt;a href=\"http://www.shutterstock.com/pic.mhtml?id=34055929&amp;src=id\" target=\"_blank\"&gt;Shutterstock&lt;/a&gt;)\n\n"^^<http://www.w3.org/2001/XMLSchema#string>
<http://newatlas.com/philips-led-supermarket-navigation/30902/>