renn[4], neun[4], reun[4], rune[4], uren[4], urne[4],
yen[12], rye[12], ern[3], ren[3], neu[3], nun[3], reu[3], ure[3], nur[3], run[3],
ey[11], ny[11], ne[2], er[2], re[2], nu[2], ur[2],
