<http://schema.org/mpn>
"BIG_USHOT_DELUXE_LEATHER_BLACK"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.mironet.cz/xsories-big-ushot-deluxe-leather-black-velky-teleskopicky-drzak-2994cm-deluxe-leather-pro-gopro-kuze-cerna+dp238504/>