<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.osc.org/index.php?option=com_jcalpro&Itemid=146&extmode=view&extid=379472&date=&date=2013-05-26&format=ical>