<http://schema.org/keywords>
"hdr, feld, korn, blume, field, clouds, wolken, blossom, bl\u00C3\u00BCten, blau, blue, himmel, sky"^^<http://www.w3.org/2001/XMLSchema#string>
<https://marketplace.500px.com/photos/6541538/kornblumenfeld-2-by-leo-p%25C3%25B6cksteiner>