def _get_sig_data(word: dict):
    """HELPER: extracts if the sig is in word dictionary

    :param word: dictionary from the json word
    :type word: dict
    :return: if sig, ':' and '$' in the word dictionary, it returns it. otherwise it returns False.
    :rtype: list
    """
    if "sig" in word:
        if ":" in word["sig"] and "$" in word["sig"]:
            return [word["sig"][word["sig"].find(":") + 1:word["sig"].find("=")],
                    word["sig"][word["sig"].find("$") + 1:]]
    return False