<http://schema.org/headline>
"Google Play\u2019s revenue rises by 311%, but Apple\u2019s App Store sees 4 times more sales, study says"^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/insider/2012/11/29/google-plays-revenue-rises-by-311-but-apples-app-store-sees-4-times-more-sales-study-says/>