<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.osc.org/index.php/templates/images/stories/FrontImages/index.php?option=com_jcalpro&Itemid=146&extmode=view&extid=413769&date=2014-02-23>