<http://schema.org/query-input>
"required name=search_term"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.bulbs.com/High_Intensity_Discharge_(HID)_Ballasts/277V-Input_Volts/over_$100/1_Lamp/results.aspx?Ns=P_List+Price%7C0&pid=358>