public ArrayList<ArrayList<String>> translate(ArrayList<ArrayList<String>> sentenceBundle) {
        ArrayList<String> charIdentifier = sentenceBundle.get(1);

        for (int i = 0; i < charIdentifier.size(); i++) {
            for (int j = 0; j < key.length; j++) {
                if (charIdentifier.get(i).equals(key[j][0])) {
                    charIdentifier.set(i, key[j][1]);
                }
            }
        }

        return this.passVar(sentenceBundle.get(0), charIdentifier);
    }