nerv[9], mure[6], rume[6], reun[4], rune[4], uren[4], urne[4],
emu[5], mur[5], rum[5], ern[3], ren[3], neu[3], reu[3], ure[3], nur[3], run[3],
um[4], ne[2], er[2], re[2], nu[2], ur[2],
