public String contentIn(String l, String r, int i) {
		if (parenNotMatch(r))
			return "";
		if (content[i] == null)
			return "";
		for (String c : content[i]) {
			if (l.equals(c))
				return "";
		}
		if (series[i] == null)
			return "";
		for (String s : series[i]) {
			if (s.isEmpty())
				continue;
			Pattern p = Pattern.compile(s, 82);
			if (p.matcher(l).find())
				return "";
		}
		return " style=\"color:#888;font-style:italic;font-size:85%;\"";
	}