<http://schema.org/creator>
"\u00C3&#129;kos Erd\u00C3\u00A9lyi"^^<http://www.w3.org/2001/XMLSchema#string>
<https://marketplace.500px.com/photos/10116861/%25C3%2589bred%25C3%25A9s-by-%25C3%2581kos-erd%25C3%25A9lyi>