<http://schema.org/headline>
"C\u00E1c \u1EE9ng c\u1EED vi\u00EAn C\u1ED9ng h\u00F2a k\u00EAu g\u1ECDi \u00F4ng Obama h\u1EE7y c\u00F4ng du qu\u1ED1c t\u1EBF "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.vietnamplus.vn/cac-ung-cu-vien-cong-hoa-keu-goi-ong-obama-huy-cong-du-quoc-te/377478.vnp>