<http://schema.org/keywords>
"\u30CA\u30EB\u30B7\u30B7\u30BA\u30E0"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.huffingtonpost.jp/2016/01/22/8-signs-youve-fallen-for-a-narcissist_n_9047662.html>