-er eee eef eel eer eev ef- efe eff efl efr ele elf ell elr elv ere erf erl err erv eve evf evl evr evv fee fef fel fer fev ffe fff ffl ffr ffv fle flf fll flr fre frf frl frr lee lef lel ler lev lfe lff lfl lfr lle llf lll llr llv lrf lrr lrv lve lvf lvl lvr lvv re- ree ref rel rer rev rfe rff rfl rfr rfv rle rlf rll rlr rrf rrl rrr rve rvf rvl rvr rvv v-e vee vef vel ver vff vfl vfr vfv vl- vle vlf vll vlv vre vrf vrr vvr vvv

eeee eefe eefl eele eelv elee elef eler elev elfe elle elve erel erer erev erle erll erre erve evel ever evre feel feer fefe feff fele felf fell fere ferr ferv feve fevr ffee ffff ffrr flee fler fr-v free leef leel leer lefe leff lele lell lere lev- leve llef llll lrrr lvrr reef reel reev refe reff refl refr rele rell rere reve rfef rffl rlee rlef rrle rrrr rver veel veer vel- vele vell ver- vere verl veve vref vver vvvv

eeeee eeler eevee eever efere effer elele eleve ellel eller elver erere ereve evell evere everr eveve feele feere felle ferel ferle ferr- ferre fever fevre fleer flere freel freer frere leell leere leeve leffe lefve lelle lerer levee level lever levre reefe reere reeve refel refer reffe relee rere- reree revel rever revle veele veell veere veeve velev velle verel verre verve vever vreel

efeler effere eleele feeler feller ferfel ferfer ferrel ferrer freele frefre leelee leerer leevre leffel levere reefer reeffe reeler reever refeel refeff refell reflee releef releve reller rereel revell revere revver veerer veller velvel verree verrel verrer vervel verver vvvvvv

eve-eel felfree ferrell ferrere feverel fleerer leffler leveler referee referer releefe releeve relevel rerefer reveler revelle reveree reverer verrell verveer vervell

everfree feelfree fellerer freefell leveller referree referrer reveller verrelle vervelle

fllllllll revelever

level-free