foce[9], ceno[5], noce[5], ocen[5], open[5], peon[5], poen[5],
pfe[8], fen[7], nef[7], efo[7], fon[7], cep[5], cen[4], cne[4], noc[4], nep[4], pen[4], eon[3], one[3],
ef[6], fe[6], ce[3], co[3], pe[3], op[3], po[3], en[2], eo[2], no[2], on[2],
