<http://schema.org/headline>
"Gi\u1EA3m gi\u00E1 \u0111\u1EBFn 50% cho c\u00E1c \u0111\u1EA7u s\u00E1ch t\u1EA1i H\u1ED9i s\u00E1ch Gi\u00E1ng sinh 2015"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.vietnamplus.vn/giam-gia-den-50-cho-cac-dau-sach-tai-hoi-sach-giang-sinh-2015/361882.vnp>