<http://schema.org/about>
"Less than three months after Starbucks introduced a way for customers to pay for grande lattes using their mobile phones, the Starbucks Card Mobile app has been"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/green-tech/gadgets-electronics/stories/starbucks-mobile-payment-app-used-by-3-million-people-in-3-mo>