-er a-a a-b aaa aab aae aak aar aas ab- aba abb abe abk abr abs aea aeb aee aek aer aes aka akb ake akk akr aks ar- ara arb are ark arr ars as- asa asb ase ask asr ass baa bab bae bak bar bas bba bbb bbe bbk bbr bbs be- bea beb bee bek ber bes bka bkb bke bkk bkr bks bra brb bre brk brr brs bsa bsb bse bsk bsr bss eaa eab eae eak ear eas eba ebb ebe ebk ebr ebs eea eeb eee eek eer ees eka ekb eke ekr eks era erb ere erk err ers es- esa esb ese esk esr ess ka- kaa kab kae kak kar kas kba kbb kbe kbk kbr kbs ke- kea keb kee kek ker kes kkb kke kkk kkr kks kra krk krr krs ksa ksb kse ksk ksr kss ra- raa rab rae rak rar ras rba rbb rbe rbk rbr rbs re- rea reb ree rek rer res rkb rke rkk rks rra rrb rrk rrr rrs rsa rsb rse rsk rsr rss saa sab sae sak sar sas sba sbb sbe sbk sbr sbs se- sea seb see sek ser ses sk- ska skb ske skk skr sks sr- sra srb sre srk srr srs ss- ssa ssb sse ssk ssr sss

-ase a-ak a-be aaaa aaab aaae aaar aaas aaba aabb aaea aaes aaka aake aara aare aars aasa aase aass abaa abab abae abak abar abas abb- abba abbb abbe abbr abbs abee aber abes abra abrs abs- absa abse abss aeas aebs aeer aeka aer- aera aers aess akaa akae akar akas akee aker akes akka akr- akra akre aksa arab arae arak arar aras arba arbe arbs area aree arek ares arka arke arks arr- arra arre arrk arrr arrs ars- arsa arse arsk asaa asab asae asak asar asas asba asea asee asek aser ases aska aske askr asks asra asrs assa asse assk assr asss 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 bbas bbbb bbbs bbeb beak bear beas beba bebb bebe beeb beek beer bees beka beke beks bera bere berk berr bers bes- besa bese besk bess brab brae brak bras brea breb bree brek brer bres brka brkb brrr brrs brsb brsr bsaa bsas bsea bseb bsee bser bses bsra bsse eaba eara earb eare ears easa ease ebba ebbr ebbs eber ebes ebsa eeea eeee eees eeka eeke eeks eera eers eese eesk eka- ekab ekeb ekek eker ekes ekka eras erba erbb erbe ereb erer eres erke erks erra erre errs ersa erse esab esar esas esba esbs esea esee esek eser eses eska eske esks esra essa esse kaaa kaab kaak kaar kaas kaba kabb kabe kabr kaer kaes kaka kake kakk kaks kara karb kare kark karr kars kas- kasa kasb kase kask kasr kass kbaa kbab kbae kbak kbar kbas kbba kbbb kbbe kbbk kbbr kbbs kbeb kbee kbek kber kbes kbkb kbkk kbkr kbra kbrb kbre kbrk kbsa kbsb kbsk kbsr kbss kea- keak kear keas keba kebb kebe kebr keek keer kees keka kekb keke keks ker- kera kerb kere kerk kerr kers kesa kesb kesk kesr kess kkaa kkar kkba kkbb kkbe kkbr kkbs kkea kkkk kkrb kkre kkrk kkrr kkrs kksa kkse kksr kkss krab krae krak krar kras krba krbb krbe krbk krbr krea kreb kree krek kres krka krke krkk krkr krks krrb krre krrk krrr krrs krsa krse krsk krsr krss ksab ksak ksar ksas ksba ksbr ksbs ksea ksee ksek kser kska kskb kske kskk kskr ksks ksra ksrb ksrr ksrs kssa ksse kssr ksss raab raak raas raba rabb rabe rabk rabs raer raes raka rake rakk rara rarb rare rark rars rasa rase rask rass rbbb rbbr rbbs rbss rea- reae reak rear reas reba rebb rebe rebk rebs reeb reek rees reka reke reks rera rere rers resa rese ress rkss rras rrrr rsaa rsee rsre rssa saab saae saak saar saas saba sabb sabe sabr sabs saeb saek saer saes saka sakb sake sakk saks sara sare sark sarr sars sasa sase sask sass 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 sesa sese sess skab skar skee sker skes skra skss sras sreb sres ssaa ssab ssas ssbr ssee sses ssra ssrs sssa sssb ssss

-aaa- a-sea aaaas aaaee aaasa aaass aabaa aabba aabra aaker aakre aasee aasra abaab ababa ababe ababs abaer abaka abake abara abare abasa abase abask abass abbar abbas abbes abbrs abear abeba abebe abeer abees abekr abera abere aberr abkar abrak abrar abras abrek abres absar absee aeaea aebbe aeres aka-e akaba akare akasa akbar akbas akees akera akers akkas akker akkra akrak akrar aksar ar-ab arab- araba arabe arabs araea arake araks arara arare arars arase arass arbab arbar arbas arbee arber arbre areae arear areas areek arees areka areke arere arese arkar arkas arrak arras arrea arres arses arske asaak asaba asaka asake asara asare asasa asbak asear aseek aseer asere asers askar askas asker askes asksa asrar assab assas asse- asser asses b-r-k baabe baake baars babak babar babas babbs babee babek baber babes babka babra babsk baers bakar bakea baker bakes bakka bakke bakra baksa baraa barab barak barar baras barba barbe barbs barea barek barer bares bark- barka barke barks barra barre barrs barsa barse barss basab basak basar baser bases baska baske basks basra bassa basse bbbee bbear bbser be-er beaks beara beare bears bease bebar bebek beber bebes bebra beebe beebs beeke beers bekaa bekas beker bekes bekka bekke bekra berak berar berba berbe berea berek beres berk- berka berke berks berra berre bersa berse besar besas besee beska besra bessa besse