<http://schema.org/priceCurrency>
"USD"^^<http://www.w3.org/2001/XMLSchema#string>
<https://marketplace.500px.com/photos/19490427/%25D0%25A1%25D1%2583%25D0%25B4%25D0%25B0%25D0%25BA-%25D0%2597%25D0%25B0%25D0%25BA%25D0%25B0%25D1%2582-by-aleksandr-naumenko>