eeee eefe eefl eele eely efeo effy efly elee elef eleo elex eley elfe elle ello elly eloy eole eolo exel exfo exo- exxy eyey eyle feel fefe feff fefo fele felf fell felo feof ffee ffff flee flex fley floe floo flox floy flye fofo fole foll folo folx foly foof fool foxe foxx foxy foyl fyeo fyfe fyle leef leel lefe leff lele lell lelo lely leof leox lexx lexy leye leyf llef llll lloo lofe loff lole loll lolo loly looe loof lool lox- loxo loye lxxx lyef lyfe lyff lyfy lyle lyly lyo- lyoe lyx- lyyf o-eo oele oeye oeyo off- offe offo offy ole- olef oleo oley olfe olle ollo olly olof olyf ooff oofy oolo oooo oxo- oxof oxox oxxo oxy- oxyl oyee oyly xefe xely xexe xlox xolo xoxo xoyo xxxo xxxx xxxy xyl- xylo yeel yefe yeff yele yelf yell yelo yeof yeox yeye yeyo yfel ylex ylle yoff yole yoll yolo yoly yoof yool yoxe yoye yoyo yyfe yyff yyyy