private static Display clean(Display orig) {
		if (orig.size() == 0 || orig.get(0) instanceof MessageNumber == false) {
			return orig;
		}
		Display result = Display.empty();
		for (int i = 0; i < orig.size(); i++) {
			CharSequence element = orig.get(i);
			if (i == 1) {
				element = removeTag(orig.get(0).toString()) + " " + element;
			}
			if (i != 0) {
				result = result.add(element);
			}
		}
		return result;
	}