eeee eeke eero eete ekek eker eket ekpe ekpo eore eoto epee eper epor epot eppo eppp epro eprp epte erer eret erke eroe eroo erpe erre erro etee eter etoe etok etre etro ette etto keek keep keer keet keke keko keok kep- kepe kept ker- kere kerk kero kerp kerr kert ket- kete ketk keto ketp ketr kett kkkk kkoo kkor kkot kkpk kkpt kkre kkrk kkro kkrr kkrt kktk koke kokk koko kokp kokr kook kooo koop koor koot kope kopp kopr kopt kore kork koro korr kort kote kotk koto kotr kott kpek kper kpet kpke kpkk kpkr kpoe kpok kpoo kpop kppk kppo kppp kppr kpre kprk kpro kprp kprr kprt kpte kpto kptr kptt kree krek kreo kret krke krkk krko krkr kroe krok kroo krop kror krpr krpt krre krrk krro krrr krrt krtk krto krtr ktee ktek ktep ktke ktkk ktko ktkr ktkt ktoe ktok ktoo ktop ktor ktot ktpk ktpo ktpr ktpt ktre ktrk ktro ktrp ktrr ktrt kttk ktto kttp kttr kttt o-eo oere oker oket okko okok okor okot okpe okpo okre okro okto ooer oooo oore oort ootp opep oper opet opo- opor oppo opto ore- orek oreo orer orke orko oro- oroe orok oror orot orpe orro orte orto otee otep oter oto- otoe otok otoo otor otpp otre otro otte otto peek peep peer peet peke pekk peko peor pepe pepo per- pere perk pero perp perr pert pete peto petr pett poer poet poke poko pook poop poor poot pop- pope popo popp popt pore pork poro porr port pote poto pott pper pppo pppp pptt pre- pree prek prep pret pro- proe proo prop prot prtp prtr pter ptop pttk reek reep reet reke reko rekt reop reot repe repo repp repr rept rere rero rert rete reto retr rett roer roet roke rokk roko rokr rook roop roor root rope ropo rore rork roro rort rote rotk roto rotr rott rpet rpoe rrrr rtee rttp teek teer teet teke teok teor tepe tepp ter- tere terk tero terp terr tete teto tetr tett toee toek toer toet toke toko took toor toot top- tope topo topp topt tore tork toro torp torr tort tote toto totr tott tper tpke tppp tppr tpte tptp tptr tre- tree trek treo tret troe troo trop trot trpe trpp trte trtr tteo tter ttoe ttop tttt