<http://schema.org/keywords>
"comercio, casino, corte, restaurante, shoping, mercado, shopping, mall, supermercado, comercial, comercio"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.bibliocad.com/biblioteca/corte-1--1-de-un-centro-comercial;-de-oficinas-y-ocio_44117>