<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/WebSite>
<http://www.bulbs.com/High_Pressure_Sodium-High_Intensity_Discharge_(HID)_Ballasts-Ballasts-Category/277V-Input_Volts/$50_--_$100/results.aspx>