<http://schema.org/query-input>
"required name=search_term"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.bulbs.com/Ballasts/277V-Input_Volts/0.30_--_0.59_Amps/5.000-5%22_--_under_10%22-Length_(in)/results.aspx>