<http://schema.org/target>
"http://www.bulbs.com/results.aspx?Ntt={search_term}"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.bulbs.com/noresults.aspx?term=*PAR*&state=Halogen+Light+Bulbs%2c+250W%2b+where+Length+is+5%22>