<http://schema.org/keywords>
"blue, cars, cuba, havana, perspective, point of view, pov, red, road, street, citt!, citt\u00C3\u00A0, citt\u00E2\u20AC\u00A1, city, clouds, macchine, nuvole, sky, giraudo, paolo"^^<http://www.w3.org/2001/XMLSchema#string>
<https://marketplace.500px.com/photos/23728189/blue-red-by-paolo-giraudo>