<http://schema.org/mainEntityOfPage>
<http://www.digitalspy.com/music/us-billboard-chart/news/a316920/katy-perry-holds-adele-off-us-number-one/True>
<http://www.digitalspy.com/music/us-billboard-chart/news/a316920/katy-perry-holds-adele-off-us-number-one/>