Find original articles here:
http://www.yonhapnews.co.kr/photos/1990000000.html?cid=PYH20170602207400051
http://www.yonhapnews.co.kr/photos/1990000000.html?cid=PYH20170602207800051
http://www.yonhapnews.co.kr/photos/1990000000.html?cid=PYH20170602207500051
http://www.yonhapnews.co.kr/photos/1990000000.html?cid=PYH20170602207600051