-er eee eef eek eel eep eer eex ef- efe eff efi efl efp efr efx eie eif eii eik eil eip eir eix eke ekf eki ekl ekp ekr ele elf eli elk ell elp elr elx ep- epe epf epi epl epp epr epx ere erf eri erk erl erp err ex- exe exi exl exp exr exx fee fef fei fek fel fep fer fex ffe fff ffi ffk ffl ffp ffr ffx fie fif fii fik fil fip fir fix fkf fki fkk fkl fkp fle flf fli fll flp flr flx fpe fpi fpk fpl fpp fpr fpx fre frf fri frk frl frp frr fxe fxi fxp fxr fxx i-f ie- iee ief iei iek iel iep ier iex ife iff ifi ifl ifp ifr ifx iie iif iii iil iip iir iix ike ikf iki ikk ikl ikr ikx il- ile ilf ili ilk ill ilp ilr ilx ipe ipf ipi ipl ipp ipr ipx ir- ire irf iri irk irl irp irr irx ixe ixi ixl ke- kee kef kei kek kel kep ker kex kff kfi kfx kie kif kii kik kil kip kir kix kke kki kkk kkl kkp kkr kl- klf kli klr klx kpe kpf kpi kpk kpl kpp kpr krf kri krk krl krp krr kxl l-p lee lef lei lek lel lep ler lex lfe lff lfi lfk lfl lfp lfr lfx lie lif lii lik lil lip lir lix lkl lkp lkr lle llf lli llk lll llp llr lpe lpf lpi lpk lpl lpp lpr lpx lrf lri lrk lrp lrr lxi lxr lxx p-p pee pef pei pek pel pep per pex pfe pff pfi pfk pfl pfp pfr pfx pie pif pii pik pil pip pir pix pke pkf pki pkl pkp pkr ple plf pli plk pll plp plr plx ppe ppf ppi ppk ppl ppp ppr ppx pre prf pri prk prl prp prr prx pxe pxk pxl pxr re- ree ref rei rek rel rep rer rex rfe rff rfi rfk rfl rfp rfr rie rif rii rik ril rip rir rix rke rkf rkk rkp rle rlf rli rll rlp rlr rpe rpf rpi rpk rpl rpp rpr rpx rrf rri rrk rrl rrp rrr rxp rxr xee xel xep xer xex xfe xfl xfx xie xii xix xke xkl xlf xli xlr xpe xpf xpl xpp xrf xrx xxi xxl xxp xxx

eeee eefe eefl eeke eele effi efik efil efke eiei eier eike eiki eile eipr eire ekek eker ekki ekpe el-p elee elef elek eler elex elfe elfi elie elif elik elil elix elke elki elle elli elpe elpi epee eper epi- epie epik epil epip epix eple epll eppp eprp epxp er-x erei erel erer erfx erie erik eril erke erki erle erli erll erpe erre exel exer exif exki expr exrx f--k feek feel feer fefe feff fefi feie feil feir feke fele felf feli felk fell fere ferk ferr ffee ffff ffii ffrr fief fiel fier fife fiff fifi fiii fiil fike fiki file fili filk fill fipp fire firk fixe fixx flee fler flex flii flik flip flix fprf free frei frep frex frie frik fril frip ieie iele iere ieri ifel ifer ifex ifil ifrf ifri iiie iiii iipf ikee iker ikki ikri ile- ilek iler ilex ilie ilir ilke ilki ill- ille illi illp ilpe ilpr ilre ilxx ipek iper ipex ipie ipil ipix ipkf ippf ippr ipri ipxe iree irel irer irex irfe iri- irie iril irip irix irki irpe irre irri ixil ixxi keef keek keel keep keer keff kefr kefx keif keii keik keil keir keke keki kekl kele kelf keli kelk kell kelp kep- kepe kepi kepx ker- kere kerf keri kerk kerl kerp kerr kerx kexi kexl kexx kfel kfer kfff kffk kffx kfil kfir kfix kfkx kflf kfli kfll kflp kflx kfpr kfre kfri kfrp kfrr kfrx kfxe kfxf kfxi kfxl kfxp kfxr kfxx kief kiel kier kife kiff kifl kifr kifx kiii kiik kiip kiix kikf kiki kikk kikr kikx kile kili kilk kill kilp kilr kilx kip- kipe kipi kipl kipp kipr kirf kiri kirk kirp kirr kirx kixi kixk kixl kixx kkex kkfi kkfr kkik kkix kkkk kklf kkli kkll kklx kkpk kkpl kkre kkrf kkrk kkrl kkrr kkrx kkxk kkxl kkxx klee klef klek klep kler klex klfe klff klfi klfx klif klik klil klip klir klix klkk klkl klkr klkx klle kllk kllp klpf klpi klpr klpx klrf klrk klrr klrx klxk klxp klxr klxx kpek kpel kper kpfk kpfr kpfx kpif kpir kpke kpkk kpkl kpkr kpkx kplk kplr kplx kppk kppl kppp kppr kpre kprf kpri kprk kprl kprp kprr kpxi kpxp kpxr kree kref krei krek krex krfe krff krfp krfx krik kril krke krki krkk krkr krkx krle krlf krlx krpi krpl krpr krpx krre krrf krri krrk krrl krrr krrx krxf krxk krxl krxp krxr krxx kxel kxex kxff kxii kxix kxkk kxkx kxle kxli kxll kxlp kxlr kxlx kxpk kxpl kxpr kxre kxrk kxrp kxrr kxrx kxxe kxxf kxxi kxxk kxxl kxxr kxxx leef leek leel leep leer lefe leff leie leif leik leil leir leix leke leki lekk lele leli lell lepe lepi lepp lere lerk lerp lexi lexx lief liek liel liep lier life liff lifl lifx liii liir like lile lili lill lip- lipe lipi lipl lipp lire liri lirk lirl lirp lirr lixi llef llll lpfp lppl lprp lrif lrrr lxii lxxi lxxx peek peel peep peer peff peil peip peir peke peki pekk pel- pele pelf pell pepe pepi per- pere perf peri perk perl perp perr pfff pffr pfkl pfkp pfli piel piep pier piff piip pike piki pikk pil- pile pili pilk pill pipe pipi pipp pire piri pirk pirl pirr pixl pixx pkix pklr ple- plee plei plek plex plff plie plif plik plip plkk plpp plri pper ppie ppif pple ppli pppp pprf pre- pree pref prek prel prep prex pri- prie prif