<http://schema.org/headline>
"Nigeria \u0111\u01B0a ra c\u1EA3nh b\u00E1o cu\u1ED1i c\u00F9ng v\u1EDBi phi\u1EBFn qu\u00E2n Boko Haram "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.vietnamplus.vn/nigeria-dua-ra-canh-bao-cuoi-cung-voi-phien-quan-boko-haram/350635.vnp>