<http://schema.org/headline>
"R\u00F2 r\u1EC9 t\u00E0i li\u1EC7u li\u00EAn quan \u0111\u1EBFn danh t\u00EDnh c\u1EE7a 22.000 ph\u1EA7n t\u1EED IS "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.vietnamplus.vn/ro-ri-tai-lieu-lien-quan-den-danh-tinh-cua-22000-phan-tu-is/375325.vnp>