<http://schema.org/alternateName>
"PromoGrad.bg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://promograd.bg/varna/zdrave/pregled-pochistvane-na-karies-izrabotvane-na-fotopolimerna-plomba-ot-material-na-firma-sdi.57356>