<http://schema.org/keywords>
"lincoln national park, larus pacificus, pacific gull, bird, coastal, beach, waves, south australia, stock, sa, sea, sand, seaside, colour, color, clouds, wings, flight, tourism, bright, australia, australian, aussie, fauna, print, robert lang"^^<http://www.w3.org/2001/XMLSchema#string>
<https://marketplace.500px.com/photos/15264699/seagull-and-ocean-south-australia-by-robert-lang>