<http://schema.org/headline>
"\u7B2C7\u56DE\u3000\u30DE\u30CD\u30B8\u30E1\u30F3\u30C8\u306A\u304D\u30D7\u30ED\u30B8\u30A7\u30AF\u30C8\u7BA1\u7406"^^<http://www.w3.org/2001/XMLSchema#string>
<http://gihyo.jp/dev/serial/01/engineer-proverbs/0007>