<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.cambodiaun.org/?view=article&catid=20%3Amay-11&id=76%3Acambodia-statment-on-thai-military-act-&format=pdf&option=com_content&Itemid=37>