<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.bettasistemas.com/?option=com_content&view=article&id=193%3Abetta-sistemas&catid=51%3Anoticiasbetta&lang=en&Itemid=0>