<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.cambodiaun.org/?view=article&catid=44%3Amay-2011&id=74%3Aforeign-ministrys-note-to-thai-embassy-in-phnom-penh-4-may-2011&format=pdf&option=com_content&Itemid=60>