init python:
    import re
    replace_dict = {
        "ggg": "gww",
    }

    def game_text_mod(str):
        rc = re.compile('\\b|\\b'.join(map(re.escape, replace_dict)), re.I)

        def translate(match):
            key = match.group(0).lower()
            suffix = ""
            value = ""
            if "'s" in key:
                key = key[:-2]
                suffix = "'s"

            if match.group(0).isupper():
                value = replace_dict[key].upper()
            elif match.group(0).istitle():
                value = replace_dict[key].title()
            else:
                value = replace_dict[key]

            return value + suffix

        return rc.sub(translate, str)

define config.say_menu_text_filter = game_text_mod
define ma = Character ("mom")
define si = Character ("sister")
define ysi = Character ("your sisters")
define si2 = Character ("Sister")
define da = Character ("Dad")
define su = Character ("dad")
define ca = Character ("mom")
define fa = Character ("family")
define pa = Character ("parents")
define au = Character ("Aunt")
define mau = Character ("my Aunt")
define maus = Character ("my Aunt Silvia")
define oau = Character ("our Aunt")
define yau = Character ("your Aunt")
define br = Character ("bro")
define bro = Character ("brother")