<http://schema.org/query-input>
"required name=search_term"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.bulbs.com/Compact_Fluorescent_Plug--in/Philips_Lighting/Double_Twin_Tube-Shape/G24d--3-Base/results.aspx?Ns=P_List+Price%7C0>