<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.btv.cat/btvnoticies/2013/08/06/uns-300-activistes-de-la-pah-reben-la-marxa-per-la-dignitat-a-la-placa-despanya/>