<http://schema.org/query-input>
"required name=search_term"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.bulbs.com/MR--11-Halogen_Bulbs-Light_Bulbs-Category/$1_--_$5/1.250-1%22_--_under_2%22-Length_(in)/results.aspx>