<http://schema.org/headline>
"OPEC l\u1EA1c quan v\u1EC1 tri\u1EC3n v\u1ECDng cu\u1ED9c h\u1ECDp gi\u1EEFa c\u00E1c n\u01B0\u1EDBc s\u1EA3n xu\u1EA5t d\u1EA7u"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.vietnamplus.vn/opec-lac-quan-ve-trien-vong-cuoc-hop-giua-cac-nuoc-san-xuat-dau/406743.vnp>