<http://schema.org/keywords>
"citt\u00C3\u00A0, city, city and architecture, cityscape, holidays, italy, landscape, long exposure, mare, otranto, puglia, rocks, salento, spiagge, marco raho, night shot, rocce, lecce, seascape"^^<http://www.w3.org/2001/XMLSchema#string>
<https://marketplace.500px.com/photos/22302713/on-rocks-by-marco-raho>