<http://schema.org/headline>
"\u7B2C7\u56DE\u3000JavaScript\u3068HTML\u3068DOM\u306E\u57FA\u672C#2 \u30A4\u30D9\u30F3\u30C8\u7DE8"^^<http://www.w3.org/2001/XMLSchema#string>
<http://gihyo.jp/dev/serial/01/crossbrowser-javascript/0007>