<http://schema.org/target>
"http://www.bulbs.com/results.aspx?Ntt={search_term}"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.bulbs.com/Light_Bulbs/2.600-2%22_--_under_5%22-Length_(in)/Recessed_Single_Contact-Base/results.aspx>