<http://schema.org/keywords>
"france, lavender, provence, south france, tree, Beauty In Nature, Day, Field, Flower, Fragility, France, Freshness, Growth, Lavender, Nature, Non Urban Scene, Plant, Scenics, Sunlight, Tranquil Scene, Tranquility, Tree, 500pxTours"^^<http://www.w3.org/2001/XMLSchema#string>
<https://marketplace.500px.com/photos/22449181/untitled-by-hartmut-albert>