<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=188&extmode=view&extid=384269&date=&date=2013-10-07&format=ical>