<http://schema.org/query-input>
"required name=search_term"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.bulbs.com/1-Number_of_Lamps/1_X_15W_--_19W/Fulham_Ballasts/0.90_--_1.20_Amps/results.aspx>