efem[9], enem[5], ente[5], eten[5],
fet[8], tef[8], fee[7], fen[7], nef[7], met[5], mee[4], men[4], nem[4], net[4], ten[4],
ef[6], fe[6], em[3], me[3], et[3], te[3], ee[2], en[2],
