<http://schema.org/headline>
"\u300C\u30B0\u30FC\u30B0\u30EB\u30FB\u30B0\u30E9\u30B9\u300D\u306F\u30C0\u30B5\u30A4\uFF1F"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.huffingtonpost.jp/2013/05/17/story_n_3290805.html>