eeee eefe eefl eele eelv eero efeo efor elee elef eleo eler elev elfe elle ello elro elve elvo eole eolo eore eorl erel erer erev erle erll eroe erol eroo erre erro erve evel ever evoe evol evoo evre feel feer fefe feff fefo fele felf fell felo feof fere fero ferr ferv feve fevr ffee ffff ffrr flee fler floe floo flor foer fofo fole foll folo folr foof fool for- fore forl foro forr fove fr-v free freo froe frol leef leel leer lefe leff lele lell lelo leof leor leov lere lero lev- leve levo llef llll lloo lo-v lofe loff lole loll lolo looe loof lool loor lore loro love lovo lrrr lvov lvrr o-eo oele oere ofer off- offe offo offr ofor ofre ole- olef oleo oler olev olfe olle ollo olof olor olov ooer ooff oolo oooo oore ore- orel oreo orer orfe orff orle orlo oro- oroe orof oror orro orve orvr ovee over ovfl ovo- ovol ovoo ovre reef reel reev refe reff refl refr rele rell relo reof reol rere rero reve revo rfef rffl rlee rlef roel roer roev rofe roff rofl rofo role rolf roll rolo roof rool roor rore roro rove rovo rrle rrrr rver veel veer vel- vele vell velo veol veor ver- vere verl vero veve vevo vflo vfor voel voer voff vofr vole volf voll volo vool voor vor- vore voro vref vreo vver vvvv