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https://news.yahoo.co.jp/byline/maedatsunehiko/20170908-00075463/

http://www.excite.co.jp/News/politics_g/20170907/Gendai_413605.html

http://www.chunichi.co.jp/article/ishikawa/20170906/CK2017090602000026.html

https://this.kiji.is/278833813982742013