eeee eees eefe eefl eele eels eers eese eesi efes effi effs efil efsi eiei eier eies eifs eile eire eirs eise eiss elee elef eler eles elfe elfi elfs elie elif elil elis elle elli ells else erei erel erer eres erfs erie eril eris erle erli erll erre errs erse ersi esee esel eser eses esfs esie esil esis esli esri esse essi essl feel feer fees fefe feff fefi feie feil feir feis fele felf feli fell fels fere ferr fers fese fess ffee ffff ffii ffrr ffss fief fiel fier fies fife fiff fifi fiii fiil file fili fill fils fire firs fise fisi fiss flee fler fles flii flis free frei fres frie fril fris fsfi fssf ieie iele iels iere ieri iers iesi iesr ifel ifer ifes ifil ifis ifrf ifri iies iiie iiii iiis iirs iisi iisr ile- iler iles ilie ilir ilis ill- ille illi ills ilre ilse iree irel irer ires irfe iri- irie iril iris irre irri irrs irse irsf isee isel iser ises isie isil isis isle isls isri isse issf issi issr isss leef leel leer lees lefe leff leie leif leil leir leis lele leli lell lere lese less lief liel lier lies life liff lifl liii liir liis lile lili lill lils lire liri lirl lirr lirs lise lisi liss llef lles llll lrif lrrr lrse ls-r lses lssr reef reel rees refe reff refi refl refr refs reif reii reil reir reis rele rell rels rere reri rers rese resi ress rfef rffl rief riel rier ries rife riff rifs riif riis rile rill rire riri rirs rise risi riss rlee rlef rlif rlls rrif rrle rrrr rsee rsis rsre rssl s-ii se-e se-f se-i se-s seef seel seer sees seff sefi sefl seie seif seii seil seir seis sele self seli sell sels sere serf seri serr sers sese sesi sess sfer sfls sfss sief siel sier sies sife siff sifl sifr sil- sile silf sili sill sils sire sirf siri sirr sirs sise sisi siss sl-i slee sler sles slie slir slre slrs sres srfi sris ssee sses ssfl ssis ssle ssri ssrl ssrs sssf sssi ssss