def METHOD_NAME():
    # plural endung n/en maskuline Nomen mit den Endungen e, ent, and, ant, ist, or
    _n = DAMO_SIGMA + pynini.union("e") + pynutil.insert("n")
    _en = (
        DAMO_SIGMA
        + pynini.union("ent", "and", "ant", "ist", "or", "ion", "ik", "heit", "keit", "schaft", "tät", "ung")
        + pynutil.insert("en")
    )
    _nen = DAMO_SIGMA + pynini.union("in") + (pynutil.insert("e") | pynutil.insert("nen"))
    _fremd = DAMO_SIGMA + pynini.union("ma", "um", "us") + pynutil.insert("en")
    # maskuline Nomen mit den Endungen eur, ich, ier, ig, ling, ör
    _e = DAMO_SIGMA + pynini.union("eur", "ich", "ier", "ig", "ling", "ör") + pynutil.insert("e")
    _s = DAMO_SIGMA + pynini.union("a", "i", "o", "u", "y") + pynutil.insert("s")
    graph_plural = plurals._priority_union(
        suppletive, pynini.union(_n, _en, _nen, _fremd, _e, _s), DAMO_SIGMA
    ).optimize()
    return graph_plural