<http://schema.org/headline>
"T\u1ED5ng th\u1ED1ng M\u1EF9 Barack Obama chu\u1EA9n b\u1ECB c\u00F4ng du \u0110\u00F4ng Nam \u00C1"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.vietnamplus.vn/tong-thong-my-barack-obama-chuan-bi-cong-du-dong-nam-a/351740.vnp>