<http://schema.org/keywords>
"\u30B8\u30B8\u30FB\u30CF\u30C7\u30A3\u30C3\u30C9"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.huffingtonpost.jp/2016/09/06/celebrity-quotes-about-diet-and-exercise_n_11870390.html>