<http://schema.org/headline>
"T\u1ED5ng l\u00E3nh s\u1EF1 qu\u00E1n Vi\u1EC7t Nam t\u1EA1i Houston chi\u00EAu \u0111\u00E3i m\u1EEBng Qu\u1ED1c kh\u00E1nh"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.vietnamplus.vn/tong-lanh-su-quan-viet-nam-tai-houston-chieu-dai-mung-quoc-khanh/340952.vnp>