<http://schema.org/keywords>
"landscape, city, sea, beach, blue, view, nikon, fashion, holiday, place, harbor, nice, mediterranean, d7000, french riviera, menghetti"^^<http://www.w3.org/2001/XMLSchema#string>
<https://marketplace.500px.com/photos/6993592/blue-feelings-by-gilles-menghetti>