<http://schema.org/datePublished>
"2009-04-16T06:07:21+02:00"^^<http://schema.org/Date>
<http://www.lainformacion.com/medio-ambiente/ahorro-de-energia/tecnicas-sobre-el-ahorro-y-la-eficiencia-energetica_IWZYw7fzduGJHt8Tyt5Rn2/>