<http://schema.org/keywords>
"Arte contemporaneo, Cartuja, climbing plant, colinas, contemporary art, couple, exposicion, hills, landscape, paisaje, pared, pareja, planta trepadora, silouette, silueta, sol, sun, wall"^^<http://www.w3.org/2001/XMLSchema#string>
<https://marketplace.500px.com/photos/24845731/dream-on-a-wall-by-hani-latif-zaloum>