def human_readable(word, does_exist):
    """Produce a human-readable string to answer the word existence question

    Parameters
    ----------
    word : str
        Word to verify
    does_exist : bool
        If true, the word exists, otherwise it does not exist

    Returns
    -------
    str
        Human-readable answer regarding word existence
    """
    if does_exist:
        return "\"{}\" is valid!".format(word)
    else:
        return  "\"{}\" is not valid!".format(word)