<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.planeandpilotmag.com/?option=com_mailto&tmpl=component&link=aHR0cDovL3d3dy5wbGFuZWFuZHBpbG90bWFnLmNvbS9tc2ZsaWdodHRlc3QuaHRtbA%3D%3D>