<http://schema.org/keywords>
"#Andre, Christmas, Noel, Villeneuve, berry, bokeh, chickadee, ecureuil, eichhornchen, nature, red, scoiattolo, squirrel, stupinigi, wildlife"^^<http://www.w3.org/2001/XMLSchema#string>
<https://marketplace.500px.com/photos/20692713/listen-by-andre-villeneuve>