<http://schema.org/keywords>
"\u5EC3\u589F \u30DE\u30A4\u30A2\u30DF\u30FB\u30DE\u30EA\u30F3\u30FB\u30B9\u30BF\u30B8\u30A2\u30E0"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.huffingtonpost.jp/2013/09/26/abondoned_adventure_n_3999146.html>