<http://schema.org/keywords>
"\u30D9\u30F3\u30C1\u30E3\u30FC\u30AD\u30E3\u30D4\u30BF\u30EB"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.huffingtonpost.jp/asahi-shimbun-media-lab/cic-cambridge_b_10915734.html>