기능
http://news.naver.com/main/read.nhn?mode=LSD&mid=sec&sid1=104&oid=020&aid=0002462556
http://news.naver.com/main/read.nhn?mode=LSD&mid=sec&sid1=104&oid=020&aid=0002462556http://news.naver.com/main/read.nhn?mode=LSD&mid=sec&sid1=105&oid=092&aid=0002031781
http://news.naver.com/main/read.nhn?mode=LSD&mid=sec&sid1=105&oid=092&aid=000203178151구역
https://terms.naver.com/entry.nhn?docId=928172&cid=539&categoryId=539