<http://schema.org/image>
<http://rack.2.mshcdn.com/media/ZgkyMDEzLzA3LzMwLzRkL0dyb3Vwb24uNWU0YjYuanBnCnAJdGh1bWIJMTIwMHg2MjcjCmUJanBn/9f2af75a/d00/Groupon.jpg>
<http://mashable.com/2013/07/30/groupon-restaurant-reservations-mobile/>