<http://schema.org/headline>
"N\u00F4ng nghi\u1EC7p h\u00F3a c\u00E1c cao \u1ED1c gi\u1EEFa l\u00F2ng th\u1EE7 \u0111\u00F4 Washington D.C"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.vietnamplus.vn/nong-nghiep-hoa-cac-cao-oc-giua-long-thu-do-washington-dc/406318.vnp>