<http://schema.org/headline>
"S\u1ED1 l\u01B0\u1EE3ng ng\u01B0\u1EDDi d\u00F9ng iOS 10 v\u01B0\u1EE3t qua iOS 9"^^<http://www.w3.org/2001/XMLSchema#string>
<http://news.zing.vn/so-luong-nguoi-dung-ios-10-vuot-qua-ios-9-post686711.html>