<http://schema.org/keywords>
"componentes bicicletas,catalogo,kenda,2012,toda,gama,neumaticos,kenda,2012"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.todomountainbike.es/art/catalogo-de-kenda-2012-toda-la-gama-de-neumaticos-kenda-de-2012>