<http://schema.org/query-input>
"required name=search_term"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.bulbs.com/noresults.aspx?term=*par38*&state=PAR-38+Halogen+Flood+Light+Bulbs+from+Bulbs.com+with+a+Medium+Skirted+Base>