pean[5], pena[5], napo[5], open[5], peon[5], poen[5], eona[4],
nap[4], pan[4], nep[4], pen[4], ano[3], ona[3], eon[3], one[3],
pa[3], pe[3], op[3], po[3], ee[2], na[2], en[2], eo[2], no[2], on[2],
