<http://schema.org/caption>
"A German designer named Markus Gerke has detailed a product design concept for Instragram-inspired Instaglasses that feature a pinhole camera and a range of different filters (Image: Markus Gerke)"^^<http://www.w3.org/2001/XMLSchema#string>
<http://newatlas.com/instagram-instaglasses/23061/>