<http://schema.org/headline>
"V\u00EC sao OPEC \u0111\u1EA1t \u0111\u01B0\u1EE3c th\u1ECFa thu\u1EADn gi\u1EA3m s\u1EA3n l\u01B0\u1EE3ng d\u1EA7u m\u1ECF?"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.baomoi.com/vi-sao-opec-dat-duoc-thoa-thuan-giam-san-luong-dau-mo/c/20472808.epi>