<http://schema.org/keywords>
"Hogar, a, le\u00F1as, azotea, entrepiso, losa, reservorio, escalera, ba\u00F1o"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.bibliocad.com/biblioteca/hogar-a-lena-(detalle-constructivo_52749>