<http://schema.org/keywords>
"Avian, Bird, Crested Lark, Fence, Galerida cristata, Hungary, Nature, Songbird, Mocsa"^^<http://www.w3.org/2001/XMLSchema#string>
<https://marketplace.500px.com/photos/28829653/crested-lark-galerida-cristata-by-gyorgy-szimuly>