<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.codingforums.com/post-a-php-snippet/293007-retrieve-data-array-oop-way.html?s=049b931a3aa19d30a76da6bdceb390a7>