https://m.finance.yahoo.co.jp/fx/news/detail/20170517-dzh-fx
https://m.finance.yahoo.co.jp/fx/news/detail/20170517-dzh-fx
https://www.google.co.jp/amp/www.newsweekjapan.jp/amp/stories/world/2017/05/post-7607.php#ampshare=http://www.newsweekjapan.jp/stories/world/2017/05/post-7607.php
https://www.google.co.jp/amp/www.afpbb.com/articles/amp/3128439#ampshare=http://www.afpbb.com/articles/-/3128439
https://www.google.co.jp/amp/jp.mobile.reuters.com/article/amp/idJPKCN18C1EF#ampshare=http://jp.reuters.com/article/trump-russia-idJPKCN18C1EF