<http://schema.org/query-input>
"required name=search_term"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.bulbs.com/noresults.aspx?term=*philips*&state=T-4+Products+from+Philips+Airfield%2c+10W+-+49W+where+Diameter+is+.531%22>