public String getRelative() {
        if (elements.isEmpty()) {
            return "";
        }
        StringBuilder sb = new StringBuilder();
        sb.append(elements.get(0));
        for (int i = 1; i < elements.size(); i++) {
            sb.append(delimiter);
            sb.append(elements.get(i));
        }
        return sb.toString();
    }
Returns a string representation of the path represented by this
vespajlib/src/main/java/com/yahoo/path/Path.java