<http://schema.org/query-input>
"required name=search_term"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.biobiochile.cl/noticias/2015/01/20/buque-espia-ruso-llega-a-la-habana-en-vispera-de-reunion-entre-eeuu-y-cuba.shtml>