private void rule_johwa(int from,String prev,String str,int cur)	{
		String buf;
		String buf2;
		String new_str;
		if (cur>0&&pcheck(str,cur-1,"양성모음")!=0) {
			if (cur+2<str.length()&&str.charAt(cur+1)=='ᄋ'&&str.charAt(cur+2)=='ᅡ') {
				new_str=replace(str,cur+2,"ᅥ");
				buf = new_str.substring(0,cur+1);
				buf2 = new_str.substring(cur+1);
				// System.out.println("Prev: " + Code.toString(prev.toCharArray()) + ", " + "Str: " + Code.toString(str.toCharArray()) + ", " + "Cur: " + cur);
				mc.phonemeChange(from,buf,buf2,TagSet.TAG_TYPE_YONGS,TagSet.TAG_TYPE_EOMIES,0);
			}
			else if (cur+1<str.length()&&str.charAt(cur)=='ᄋ'&&str.charAt(cur+1)=='ᅡ') {
				new_str=replace(str,cur+1,"ᅥ");
				buf = new_str.substring(0,cur);
				buf2 = new_str.substring(cur);
				// System.out.println("Prev: " + Code.toString(prev.toCharArray()) + ", " + "Str: " + Code.toString(str.toCharArray()) + ", " + "Cur: " + cur);
				mc.phonemeChange(from,buf,buf2,TagSet.TAG_TYPE_YONGS,TagSet.TAG_TYPE_EOMIES,0);
			}
		}
	}