<http://schema.org/query-input>
"required name=search_term"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.zen-cart.com/showthread.php?98329-How-do-I-get-UPS-and-USPS-quotes-in-Zen-Cart-to-match-USPS-UPS-rates-in-my-PayPal&p=560349&mode=threaded>