<http://schema.org/mainEntityOfPage>
<http://www.upi.com/Entertainment_News/Music/2013/04/25/Beyonce-releases-Mrs-Carter-Show-tour-video/13661366925063/>
<http://www.upi.com/Entertainment_News/Music/2013/04/25/Beyonce-releases-Mrs-Carter-Show-tour-video/UPI-13661366925063/?st_rec=6961367348611>