<http://schema.org/mainEntityOfPage>
<http://www.rollingstone.com/music/pictures/the-star-studded-black-ball-2009-alicia-keys-chris-martin-john-mayer-david-bowie-and-more-20091022>
<http://www.rollingstone.com/music/pictures/the-star-studded-black-ball-2009-alicia-keys-chris-martin-john-mayer-david-bowie-and-more-20091022>