<http://schema.org/keywords>
"Theo d\u00F2ng th\u1EDDi s\u1EF1"^^<http://www.w3.org/2001/XMLSchema#string>
<http://vi.rfi.fr/chau-a/20130224-dang-cong-san-trung-quoc-se-hop-ban-chap-hanh-truoc-ky-hop-quoc-hoi>