<http://schema.org/headline>
"\u7B2C6\u56DE\u3000UNIX\u30D7\u30ED\u30B0\u30E9\u30DF\u30F3\u30B0\u306E\u52D8\u6240\uFF081\uFF09"^^<http://www.w3.org/2001/XMLSchema#string>
<http://gihyo.jp/dev/serial/01/perl-hackers-hub/000601>