<http://schema.org/query-input>
"required name=search_term"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.bulbs.com/Incandescent_Bulbs/120V_--_129V/50W_--_99W/results.aspx?No=50&Ns=P_Volts+Sort%7C0>