eeee eefe eefl eele effi efil eiei eier eile eipr eire el-p elee elef eler elfe elfi elie elif elil elle elli elpe elpi epee eper epi- epie epil epip eple epll eppp eprp erei erel erer erie eril erle erli erll erpe erre feel feer fefe feff fefi feie feil feir fele felf feli fell fere ferr ffee ffff ffii ffrr fief fiel fier fife fiff fifi fiii fiil file fili fill fipp fire flee fler flii flip fprf free frei frep frie fril frip ieie iele iere ieri ifel ifer ifil ifrf ifri iiie iiii iipf ile- iler ilie ilir ill- ille illi illp ilpe ilpr ilre iper ipie ipil ippf ippr ipri iree irel irer irfe iri- irie iril irip irpe irre irri leef leel leep leer lefe leff leie leif leil leir lele leli lell lepe lepi lepp lere lerp lief liel liep lier life liff lifl liii liir lile lili lill lip- lipe lipi lipl lipp lire liri lirl lirp lirr llef llll lpfp lppl lprp lrif lrrr peel peep peer peff peil peip peir pel- pele pelf pell pepe pepi per- pere perf peri perl perp perr pfff pffr pfli piel piep pier piff piip pil- pile pili pill pipe pipi pipp pire piri pirl pirr ple- plee plei plff plie plif plip plpp plri pper ppie ppif pple ppli pppp pprf pre- pree pref prel prep pri- prie prif prii prle prlr prri reef reel reep refe reff refi refl refr reif reii reil reir rele rell relp repe repi repl repp repr rere reri rfef rffl rief riel riep rier rife riff riif rile rill rilp ripe ripi ripl ripp ripr rire riri rlee rlef rlif rpii rrif rrle rrrr