def reformat_wrd(wrd):
    """
    1. Clean up special cases of standalone apostrophes
    2. Detect valid apostrophe cases and split those into a two words
    """
    if wrd[-1] == "'":
        wrd = wrd[:-1]
    if "'" in wrd and wrd != "'s":
        wrd_lst = wrd.split("'")
        wrd_lst[-1] = "'" + wrd_lst[-1]
    else:
        wrd_lst = [wrd]
    return wrd_lst