<http://schema.org/mainEntityOfPage>
<http://www.upi.com/blog/2013/08/01/Rolling-Stone-Boston-Bomber-cover-sells-twice-the-number-of-issues/9091375361122/>
<http://www.upi.com/blog/2013/08/01/Rolling-Stone-Boston-Bomber-cover-sells-twice-the-number-of-issues/9091375361122/?rel=3671375367981>