eeee eele eete eiei eier eile eipr eire eiti eitr el-p elee eler elet elie elil elit elle elli elpe elpi elte epee eper epi- epie epil epip epit eple epll eppp eprp epte erei erel erer eret erie eril erit erle erli erll erpe erre ertl etee etel eter etre ette etti ieet ieie iele iere ieri iett iiie iiii iiit iitr iitt ile- iler ilet ilie ilir ilit ill- ille illi illp illt ilpe ilpr ilre iper ipet ipie ipil ippr ipri iree irel irer iri- irie iril irip irpe irre irri irte irti irtp itel itep iter itet itie itil itll itri leel leep leer leet leie leil leir leit lele leli lell lepe lepi lepp lept lere lerp lert lete leti lett liel liep lier liet liii liir lile lili lill lilt lip- lipe lipi lipl lipp lire liri lirl lirp lirr lirt lite liti litl litr litt llet llll lppl lprp lrrr ltee lttr peel peep peer peet peil peip peir peit pel- pele pell pelt pepe pepi per- pere peri perl perp perr pert pete peti petr pett piel piep pier piet piip pil- pile pili pill pilt pipe pipi pipp pire piri pirl pirr pite piti pitr pitt ple- plee plei plet plie plip plit plpp plri pltt pper ppie pple ppli pppp pptt pre- pree prel prep pret pri- prie prii prle prlr prri prti prtp prtr pter reel reep reet reii reil reir reit rele rell relp relt repe repi repl repp repr rept rere reri rert rete reti retr rett riel riep rier riet rile rill rilp ripe ripi ripl ripp ripr ript rire riri rite riti ritl ritt rlee rpet rpii rrle rrrr rtee rtei rtle rtlt rttp teel teer teet teie teil teip teir tel- tele teli tell telt tepe tepi tepp ter- tere teri terp terr tete teti tetr tett tie- tiee tiei tiel tiep tier tiet tiit tile till tilr tilt tip- tipe tipi tipp tipt tire tiri tirl tirr tite titi titp titt tlli tper tpir tppp tppr tpte tptp tptr tre- tree trei tret tri- trie tril trip trit trpe trpp trte trtr tter tttt