<http://schema.org/headline>
"Vietnam Airlines ch\u00EDnh th\u1EE9c l\u00E0 h\u00E3ng h\u00E0ng kh\u00F4ng qu\u1ED1c t\u1EBF 4 sao"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.vietnamplus.vn/vietnam-airlines-chinh-thuc-la-hang-hang-khong-quoc-te-4-sao/395643.vnp>