article_detail_amp/12851341
https://www.google.co.jp/amp/www.newsweekjapan.jp/amp/stories/world/2017/03/post-7261.php
https://www.bloomberg.co.jp/news/articles/2017-03-27/ONH9SB6JIJUO01
http://mw.nikkei.com/sp/#!/article/DGXLASGM27H3F_X20C17A3000000/