<http://schema.org/keywords>
"b&amp;w, big ben, black, black &amp; white, black cab, building, bus, cab, hegel, hegel jorge, jorge, lamp, lines, london, people, reflection, street, tour, tour bus, water, white"^^<http://www.w3.org/2001/XMLSchema#string>
<https://marketplace.500px.com/photos/23900257/london-night-by-hegel-jorge>