<http://schema.org/headline>
"\u515A\u7684\u7CBE\u795E\u8981\u5B66\u591A\u4E45\u2014\u2014\u4E00\u8F88\u5B50\uFF1F"^^<http://www.w3.org/2001/XMLSchema#string>
<http://cn.wsj.com/gb/20121205/rlw133923.asp?source=channel>