<http://schema.org/mainEntityofPage>
<http://aolblog.aol.com/2012/12/26/freeport-mcmoran-copper-gold-inc-declares-quarterl/>
<http://www.aol.com/article/2012/12/26/freeport-mcmoran-copper-gold-inc-declares-quarterl/20411455/?gen=1>