<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.stmarkboston.org/?option=com_gcalendar&view=event&eventID=4t68986t1er2oqufsuq9unpg2k&gcid=3&Itemid=239&ml=1>