<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.codingforums.com/php/275892-2-errrors-when-i-reg-my-own-script.html?s=b2d83138e657e921959e43dc26a9ff38>