-er a-a a-b aaa aab aae aag aak aar ab- aba abb abe abg abk abr aea aeb aee aeg aek aer ag- aga agb age agg agk agr aka akb ake akg akk akr ar- ara arb are arg ark arr baa bab bae bag bak bar bba bbb bbe bbg bbk bbr be- bea beb bee beg bek ber bga bgb bge bgg bgk bgr bka bkb bke bkg bkk bkr bra brb bre brg brk brr eaa eab eae eag eak ear eba ebb ebe ebg ebk ebr eea eeb eee eeg eek eer ega egb ege egg egr eka ekb eke ekg ekr era erb ere erg erk err gaa gab gae gag gak gar gba gbe gbg gbk gbr ge- gea geb gee geg gek ger gga ggb ggg ggr gka gkb gra grb gre grg grk grr ka- kaa kab kae kag kak kar kba kbb kbe kbk kbr ke- kea keb kee keg kek ker kga kgb kkb kke kkk kkr kra krg krk krr ra- raa rab rae rag rak rar rba rbb rbe rbg rbk rbr re- rea reb ree reg rek rer rga rgb rge rgg rgk rgr rkb rke rkg rkk rra rrb rrg rrk rrr

a-ak a-be aaaa aaab aaae aaar aaba aabb aaea aage aaka aake aara aare abaa abab abae abag abak abar abb- abba abbb abbe abbr abee aber abra aeer aega aeka aer- aera agag agar agba agea agee ager agga agge agra agre akaa akae akar akee akeg aker akka akr- akra akre arab arae arag arak arar arba arbe area aree areg arek arga argb arge arka arke arr- arra arre arrg arrk arrr baaa baak baar baba babb babe babr baek baer baga bage bagg bak- baka bake bakr bar- bara barb bare barg bark barr bbbb bbeb bbga bbrg beag beak bear beba bebb bebe beeb beeg beek beer bega begg beka beke bera bere berg berk berr brab brae brag brak brea breb bree breg brek brer brka brkb brrr eaba eaga eage eara earb eare ebba ebbr eber eeea eeee eega eeka eeke eera eerg egaa egae egar egba egbe egea egee eger eggb egge egra egre eka- ekab ekeb ekek eker ekka erba erbb erbe ereb erer erg- erga ergg erke erra erre gaar gaba gabb gabe gabr gaea gaer gaga gage gagg gara garb gare garg garr gbag geab gear geba gebe geek geer gege gegg gera gerb gere gggg grab grae grbr grea greb gree greg grrr kaaa kaab kaag kaak kaar kaba kabb kabe kabg kabr kaer kag- kaga kagb kage kagg kagr kaka kake kakk kara karb kare karg kark karr kbaa kbab kbae kbak kbar kbba kbbb kbbe kbbg kbbk kbbr kbeb kbee kbek kber kbga kbgb kbge kbgg kbgr kbkb kbkg kbkk kbkr kbra kbrb kbre kbrg kbrk kea- keag keak kear keba kebb kebe kebr keek keer kega kege kegg kegk kegr keka kekb keke ker- kera kerb kere kerk kerr kgab kgak kgba kgbb kgbr kgeb kgga kggg kggr kgra kgrb kgre kgrg kgrk kgrr kkaa kkag kkar kkba kkbb kkbe kkbg kkbr kkea kkeg kkgb kkgr kkkk kkrb kkre kkrk kkrr krab krae krag krak krar krba krbb krbe krbg krbk krbr krea kreb kree krek krka krke krkk krkr krrb krre krrg krrk krrr raab raag raak raba rabb rabe rabk raeg raer raga rage ragg raka rake rakk rara rarb rare rark rbbb rbbr rea- reae reak rear reba rebb rebe rebk reeb reek rega rege regr reka reke rera rere rerg rgba rgbe rrrr

-aaa- aaaee aaarg aabaa aabba aabga aabra aaker aakre abaab ababa ababe abaer abaga abaka abake abara abare abbar abear abeba abebe abeer abega abege abegg abekr abera abere aberg aberr abgar abkar abrak abrar abrek aeaea aebbe aegae aegea aeger agara agege aggag aggar agger agree aka-e akaba akare akbar akera akker akkra akrak akrar ar-ab arab- araba arabe araea arage arake arara arare arbab arbar arbee arber arbre areae arear areek arega areka areke arere arkar arrak arrea b-r-k baabe baake babak babar babee babek baber babka babra bagag bagar bagea bager bagga bagge bagra bagre bakar bakea baker bakka bakke bakra baraa barab barag barak barar barba barbe barea barek barer barga barge bark- barka barke barra barre bbbee bbear be-er beara beare bebar bebek beber bebra beebe beega beeke begab begar begee begga begge bekaa beker bekka bekke bekra berag berak berar berba berbe berea bereg berek berga berge berk- berka berke berra berre braak braga bragb brage bragg brake break breba breek breer breg- brega brege bregg breke brera brere brrar brrrr eagar eager eagre eaker earar ebara ebber eberg eeeee egare eggar egger egrek ekker erbaa erbar erbbe erber erear erege erere erkak ga-ga gaara gabar gabba gabbe gaber gabra gabre gabrk gagae gagar gagea gager gagge gagra garab garag garak garba garbe gareb garga garka garra garre gbara gbeke gberg gearb geare geber gebke gebre geere gegar gegge gerar gerba gerbe gerea gerke gerra gerre ggaba grabe graea gragg grebe greek greer grege gregg greka grgar grrrr k-gee k-rab kaaba kaaga kabaa kabab kabak kabar kabba kaber kaera kagaa kager kagra kakae kakar kakka kakke kakra karag karak karee karga karka karre keare kebab kebar kebbe kebek keber kebra keera keere kegaa kera- kerar kerek kerre kraak kraar kragg kraka krake kreek kreka kreke ra-ra raaba raabe rabab rabak rabba rabbe rabke ragea ragee rager ragga rakaa rakab rakee rakek raker rakke rarae rarbg rareb raree rarer reake rear- rebab rebag rebak rebar rebbe rebeg reber rebra reege reere regab regar regba reger regga regge rekka rekke rere- reree rraga rragb

aaaaba aaberg aakera abaera abagar abarka abeere abegge aberra abraka abreak abrera aegara aegeae ag-gag agarak agareb agreer agrega akbaba akeake akebar akkaba akkare akraba akraka arbaer arbage arberg arbra areare argaea argaka arkaea arkera arraba arraga arrage arrear arrere baabaa baabar bababe babare babbar baekke bagber baggar bagger bakaga bakara bakebe bakkar