-er a-a a-b aaa aab aae aak aar aas aav ab- aba abb abe abk abr abs abv aea aeb aee aek aer aes aev aka akb ake akk akr aks akv ar- ara arb are ark arr ars arv as- asa asb ase ask asr ass asv av- ava avb ave avk avr avs baa bab bae bak bar bas bav bba bbb bbe bbk bbr bbs be- bea beb bee bek ber bes bev bka bkb bke bkk bkr bks bkv bra brb bre brk brr brs brv bsa bsb bse bsk bsr bss bsv bva bvb bve bvk bvr bvs bvv eaa eab eae eak ear eas eav eba ebb ebe ebk ebr ebs ebv eea eeb eee eek eer ees eev eka ekb eke ekr eks ekv era erb ere erk err ers erv es- esa esb ese esk esr ess esv eva evb eve evr evs evv ka- kaa kab kae kak kar kas kav kba kbb kbe kbk kbr kbs ke- kea keb kee kek ker kes kev kkb kke kkk kkr kks kkv kra krk krr krs krv ksa ksb kse ksk ksr kss ksv kva kvb kvk kvr kvs kvv ra- raa rab rae rak rar ras rav rba rbb rbe rbk rbr rbs re- rea reb ree rek rer res rev rkb rke rkk rks rkv rra rrb rrk rrr rrs rsa rsb rse rsk rsr rss rsv rva rvb rve rvr rvs rvv saa sab sae sak sar sas sav sba sbb sbe sbk sbr sbs sbv se- sea seb see sek ser ses sev sk- ska skb ske skk skr sks sr- sra srb sre srk srr srs srv ss- ssa ssb sse ssk ssr sss ssv sva svb sve svk svr svs svv v-a v-e vaa vab vae vak var vas vav vba vbk vbr vbs vbv vea veb vee vek ver ves vka vkb vra vrb vre vrk vrr vrs vsa vsb vse vsk vsr vss vsv vva vvb vvr vvs vvv

-ase a-ak a-be aaaa aaab aaae aaar aaas aaav aaba aabb aaea aaes aaev aaka aake aara aare aars aasa aase aass aava abaa abab abae abak abar abas abb- abba abbb abbe abbr abbs abee aber abes abra abrs abs- absa abse abss abva aeas aebs aeer aeka aer- aera aers aess aeva akaa akae akar akas akee aker akes akka akr- akra akre aksa arab arae arak arar aras arba arbe arbs area aree arek ares arev arka arke arks arr- arra arre arrk arrr arrs ars- arsa arse arsk arva arve asaa asab asae asak asar asas asba asea asee asek aser ases aska aske askr asks asra asrs assa asse assk assr asss asva asvs avab avar avas avea aver aves avra avre avva baaa baak baar baas baba babb babe babr babs baek baer baes bak- baka bake bakr baks bar- bara barb bare bark barr bars basa base bask bass bava bave bbas bbbb bbbs bbeb beak bear beas beav beba bebb bebe beeb beek beer bees beka beke beks bera bere berk berr bers bes- besa bese besk bess bevs brab brae brak bras brav brea breb bree brek brer bres brev brka brkb brrr brrs brsb brsr bsaa bsas bsea bseb bsee bser bses bsra bsse eaba eara earb eare ears easa ease eave ebba ebbr ebbs eber ebes ebsa eeea eeee eees eeka eeke eeks eera eers eese eesk eeva eka- ekab ekeb ekek eker ekes ekka eras erba erbb erbe ereb erer eres erev erke erks erra erre errs ersa erse erve esab esar esas esba esbs esea esee esek eser eses eska eske esks esra essa esse evae evar evas evea ever eves evra evre evrs evvk kaaa kaab kaak kaar kaas kaba kabb kabe kabr kaer kaes kaka kake kakk kaks kara karb kare kark karr kars karv kas- kasa kasb kase kask kasr kass kava kavb kave kavs kavv kbaa kbab kbae kbak kbar kbas kbba kbbb kbbe kbbk kbbr kbbs kbeb kbee kbek kber kbes kbev kbkb kbkk kbkr kbkv kbra kbrb kbre kbrk kbrv kbsa kbsb kbsk kbsr kbss kbsv kbva kbvb kbvr kea- keak kear keas keba kebb kebe kebr keek keer kees keka kekb keke keks ker- kera kerb kere kerk kerr kers kerv kesa kesb kesk kesr kess keva keve kevs kkaa kkar kkba kkbb kkbe kkbr kkbs kkea kkkk kkrb kkre kkrk kkrr kkrs kkrv kksa kkse kksr kkss kkvr kkvv krab krae krak krar kras krav krba krbb krbe krbk krbr krea kreb kree krek kres krev krka krke krkk krkr krks krkv krrb krre krrk krrr krrs krsa krse krsk krsr krss krsv krva krvb krve krvk krvr krvs krvv ksab ksak ksar ksas ksav ksba ksbr ksbs ksbv ksea ksee ksek kser ksev kska kskb kske kskk kskr ksks ksra ksrb ksrr ksrs ksrv kssa ksse kssr ksss ksva ksve ksvr kvab kvak kvar kvas kvbr kvea kver kves kvra kvre kvrr kvrv kvsa kvsr kvss kvsv kvvr kvvs kvvv raab raak raas raba rabb rabe rabk rabs raer raes raka rake rakk rara rarb rare rark rars rasa rase rask rass rava rave rbbb rbbr rbbs rbss rea- reae reak rear reas reba rebb rebe rebk rebs reeb reek rees reev reka reke reks rera rere rers resa rese ress reva reve revs rkss rksv rras rrrr rsaa rsee rsre rssa rver saab saae saak saar saas saba sabb sabe sabr sabs saeb saek saer saes saka sakb sake sakk saks sara sare sark sarr sars sarv sasa sase sask sass sava save savs sbaa sbar sbas sbbs sber sbrk sbsa sbse se-e se-k se-s seaa seab seak sear seas seba sebe sebs seea seeb seek seer sees seka seke sekk sera serb sere serk serr sers serv sesa sese sess seva seve skab skar skee sker skes skra skss sras sreb sres ssaa ssab ssas ssbr ssee sses ssra ssrs sssa sssb ssss svar svea vaar vaas vabs vaes vaka vake