<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://osc.org/index.php/images/templates/images/stories/index.php?option=com_jcalpro&Itemid=188&extmode=view&extid=408397&date=2013-11-14>