efeb[10], beko[7], epok[6], kopn[6], open[5], peon[5], poen[5],
fob[9], fok[8], pfe[8], fee[7], fen[7], nef[7], efo[7], fon[7], bek[6], bok[6], bee[5], ben[5], bon[5], kop[5], eko[4], nok[4], nep[4], pen[4], eon[3], one[3],
ef[6], fe[6], be[4], bo[4], ko[3], ok[3], pe[3], op[3], po[3], ee[2], en[2], eo[2], no[2], on[2],
