<http://schema.org/query-input>
"required name=search_term"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.bulbs.com/PAR--38-Halogen_Bulbs-Light_Bulbs-Category/$10_--_$50/Medium_Skirted-Base/results.aspx?Ns=P_List+Price%7C0&Ntt=par38&pid=358>