https://www.youtube.com/watch?v=mOUSSJmg_dE&feature=youtu.be&t=5m17s

https://headlines.yahoo.co.jp/article?a=20170404-00021737-president-bus_all

http://www.moj.go.jp/housei/gaiben/housei07_00004.html

http://www.jomo-news.co.jp/ns/2214906592775745/news.html

https://headlines.yahoo.co.jp/hl?a=20170403-00000096-mai-soci