단일국가(비교)

		r1 vs r2
...	...
10	10	* [[https://ko.m.wikipedia.org/wiki/%EB%8B%A8%EC%9D%BC_%EA%B5%AD%EA%B0%80\|위키백과]]
11	11
12	12	* [[https://m.terms.naver.com/entry.naver?docId=1079780&cid=40942&categoryId=31646\|두산백과]]
	13