<http://schema.org/mainEntityofPage>
<http://www.aol.com/article/2014/04/16/boston-police-destroy-two-backpacks-at-marathon-site/20870002/>
<http://www.aol.com/article/2014/04/15/boston-police-destroy-two-backpacks-at-marathon-site/20870002/?icid=aolcomlogorefresh5>