<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=ficq4p1ov7m95ppio8cvl38p94_20130529T230000Z&gcid=4&Itemid=239&ml=1>