eeee eefe eefl eele effi efil eiei eier eile eipr eire el-p elee elef eler elfe elfi elie elif elil elle elli ellu elpe elpi elue elui elul epee eper epi- epie epil epip eple epll eppp eprp erei erel erer erie eril eriu erle erli erll erpe erre erur euer eufi eule eur- eure feel feer fefe feff fefi feie feil feir fele felf feli fell fere ferr feru ffee ffff ffii ffrr fief fiel fier fife fiff fifi fiii fiil file fili fill fipp fire flee fler flii flip flue fluf flur fprf free frei frep frie fril frip frue fuel fuff fufu fuil fuir fule fuli full fulu fur- fure furi furl furr 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 ipur iree irel irer irfe irfu iri- irie iril irip irpe irre irri irul iuef iuel iuiu iupp le-u leef leel leep leer lefe leff leie leif leil leir lele leli lell lelu lepe lepi lepp lere lerp leur lief liel liep lier lieu life liff lifl liii liir lile lili lill lilu lip- lipe lipi lipl lipp lipu lire liri lirl lirp lirr liru liue liuf llef lleu llll lpfp lppl lprp lrif lrpu lrrr luef luer lufe luff lufu luif lule luli lull lulu lupe lupi lupu lure luri luup peel peep peer peff peil peip peir pel- pele pelf pell pelu pepe pepi per- pere perf peri perl perp perr peru peul peur pfff pffr pfli pfui piel piep pier piff piip pil- pile pili pill pilu pipe pipi pipp pire piri pirl pirr piru ple- plee plei pleu plff plie plif plip plpp plri plue plup plur pper ppie ppif pple ppli pppp pprf ppru ppur pre- pree pref prel prep preu pri- prie prif prii prle prlr prri prue pruf pruu pu-e puel puer pueu puff puir puiu pule puli pull pulp pulu pupe pupi pupl pupu pur- pure puri purl purp purr puru reef reel reep refe reff refi refl refr refu reif reii reil reir reiu rele rell relp repe repi repl repp repr repu rere reri reru reue reuf reul reup reuu rfef rffl rief riel riep rier rieu rife riff rifu riif rile rill rilp rilu ripe ripi ripl ripp ripr rire riri riue rlee rlef rleu rlif rpii rrif rrle rrrr ruel ruer rufe ruff ruif rule rull rupe rupp rure ruri rurp ruru u-ie u-rp ueir uele ueli uell uepi ufel ufer uffe ufip uile uipi uirr ulee ulfe ulie ulle ulli ullr ulul upie uppe uppp uppu upri upup ure- urfe urff urfi urie urif uriu urle urre urri urup urur uulu uuri uuuu