<http://schema.org/mainEntityOfPage>
<http://www.si.com/mlb/2013/01/29/alex-rodriguez-steroids-hgh-gio-gonzalez-yasmani-grandal-melky-cabrera>
<http://www.si.com/mlb/2013/01/29/alex-rodriguez-steroids-hgh-gio-gonzalez-yasmani-grandal-melky-cabrera>