<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.codingforums.com/ajax-and-design/214067-using-ajax-upload-files-need-help.html?s=807afc25e41bcef964b6c1f5dc5f7b11>