<http://schema.org/mainEntityOfPage>
<http://www.tweaktown.com/articles/3933/sapphire_radeon_hd_6990_4gb_video_card_in_ausum_mode/index9.html>
<http://www.tweaktown.com/articles/3933/sapphire_radeon_hd_6990_4gb_video_card_in_ausum_mode/index9.html>