<http://schema.org/headline>
"AMD doubles up, announces ATI HD Radeon 4850 X2 and 4870 X2"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.engadget.com/2008/08/11/amd-doubles-up-announces-ati-hd-radeon-4850-x2-and-4870-x2/>