<http://schema.org/headline>
"Hi\u1EC7u \u1EE9ng Tr\u01B0\u01A1ng Duy Nh\u1EA5t"^^<http://www.w3.org/2001/XMLSchema#string>
<http://bbcvietnamese.com/vietnamese/forum/2013/05/130528_hieu_ung_truong_duy_nhat.shtml>