foce[9], fono[8], ceno[5], noce[5], ocen[5], neon[4], nono[4],
fen[7], nef[7], efo[7], fon[7], cen[4], cne[4], noc[4], eon[3], one[3], non[3], ono[3],
ef[6], fe[6], ce[3], co[3], en[2], eo[2], no[2], on[2],
