<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.beverleyfestival.com/index.php?view=article&catid=47%3Afestival-info&id=397%3Aabout-the-festival&format=pdf&option=com_content&Itemid=427>