<http://schema.org/topics>
"Facebook,Health &amp; Fitness,Social Good,Social Media,trending,Uncategorized"^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2012/05/01/facebook-organ-donor/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+mashable%2Fsocialgood+%28Mashable+%C2%BB+Social+Good%29>