<http://schema.org/mainEntityOfPage>
<http://www.tweaktown.com/news/27031/dell_offers_up_ubuntu_based_xps_13_priced_at_1549/index.html>
<http://www.tweaktown.com/news/27031/dell_offers_up_ubuntu_based_xps_13_priced_at_1549/index.html>