<http://schema.org/keywords>
"istanbul, turkey, bosphorus, bogaz koprusu, dolmabah\u00C3\u00A7e saray\u00C4\u00B1, dolmabah\u00C3\u00A7e palace, bogazici bridge, zenfree"^^<http://www.w3.org/2001/XMLSchema#string>
<https://marketplace.500px.com/photos/5071238/bosphorus-by-zen-free>