<http://schema.org/headline>
"Thu ng\u00E2n s\u00E1ch trong \u0111i\u1EC1u ki\u1EC7n kh\u00F3"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.baomoi.com/thu-ngan-sach-trong-dieu-kien-kho/c/10093227.epi>