<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.osc.org/index.php/index.php?option=com_content&view=article&id=774:kinetic-challenge-winners-announced&catid=36:kinetic-challenge&Itemid=40>