-er a-a a-b aaa aab aae aag aak aar aau ab- aba abb abe abg abk abr abu aea aeb aee aeg aek aer aeu ag- aga agb age agg agk agr agu aka akb ake akg akk akr aku ar- ara arb are arg ark arr aru au- aua aub aue aug auk aur b-u baa bab bae bag bak bar bau bba bbb bbe bbg bbk bbr bbu be- bea beb bee beg bek ber beu bga bgb bge bgg bgk bgr bgu bka bkb bke bkg bkk bkr bra brb bre brg brk brr bru bua bub bue bug buk bur buu eaa eab eae eag eak ear eau eba ebb ebe ebg ebk ebr ebu eea eeb eee eeg eek eer ega egb ege egg egr egu eka ekb eke ekg ekr eku era erb ere erg erk err eru eu- eua eub eue eug eur gaa gab gae gag gak gar gau gba gbe gbg gbk gbr gbu ge- gea geb gee geg gek ger geu gga ggb ggg ggr ggu gka gkb gra grb gre grg grk grr gru gu- gua gub gue gug guk gur guu ka- kaa kab kae kag kak kar kau kba kbb kbe kbk kbr kbu ke- kea keb kee keg kek ker kga kgb kgu kkb kke kkk kkr kku kra krg krk krr kru kub kue kug kuk kur kuu ra- raa rab rae rag rak rar rau rba rbb rbe rbg rbk rbr rbu re- rea reb ree reg rek rer reu rga rgb rge rgg rgk rgr rkb rke rkg rkk rku rra rrb rrg rrk rrr rru rua rub rue rug ruk rur ruu ua- uaa uab uae uag uak uar uau uba ubb ube ubg ubk ubr ubu uea ueb uee ueg uer uga ugb uge ugg ugk ugr ugu uka ukb uke ukk ukr uku ur- ura urb ure urg urk urr uru uua uue uug uur uuu

a-ak a-be aaaa aaab aaae aaar aaba aabb aaea aage aaka aake aaku aara aare aaru abaa abab abae abag abak abar abau abb- abba abbb abbe abbr abee aber abra abua abue abug abuk aeer aega aeka aer- aera agag agar agau agba agea agee ager agga agge aggu agra agre agua ague agur akaa akae akar akee akeg aker akeu akka akku akr- akra akre akua arab arae arag arak arar arau arba arbe area aree areg arek areu arga argb arge arka arke arr- arra arre arrg arrk arrr arru arua arub arue arug auaa aube auer auga auge auke aur- aura aure auug baaa baak baar baba babb babe babr babu baek baer baga bage bagg bak- baka bake bakr baku bar- bara barb bare barg bark barr baru bau- baug bauk baur bbau bbbb bbeb bbga bbrg beag beak bear beau beba bebb bebe beeb beeg beek beer bega begg begu beka beke bera bere berg berk berr beru beuk beur brab brae brag brak brau brea breb bree breg brek brer brka brkb brrr brue brug buar buba bubb bube bubu buea buer bueu buga buge bugg buka buke bukk buku bur- bura burb bure burg burk burr buru eaba eaga eage eara earb eare ebba ebbr eber ebru ebur eeea eeee eega eeka eeke eera eerg egaa egae egar egba egbe egbu egea egee eger eggb egge egra egre eka- ekab ekeb ekek eker ekka ekur erau erba erbb erbe ereb erer erg- erga ergg erke erra erre erua erub erur euba euer euge eur- eura eure gaar gaba gabb gabe gabr gabu gaea gaer gaga gage gagg gagu gaku gara garb gare garg garr gaua gaub gaue gauk gaur gbag geab gear geba gebe geek geer gege gegg gera gerb gere geru geue gggg grab grae grau grbr grea greb gree greg greu grrr grua grub grue grug grur guaa guag guar guba gubb gubu guer guga gugb guge gugg gugu gura gurb gure gurg gurk gurr guru kaaa kaab kaag kaak kaar kaba kabb kabe kabg kabr kabu kaer kag- kaga kagb kage kagg kagr kagu kaka kake kakk kaku kara karb kare karg kark karr karu kau- kaub kaue kaug kauk kaur kbaa kbab kbae kbak kbar kbba kbbb kbbe kbbg kbbk kbbr kbbu kbeb kbee kbek kber kbga kbgb kbge kbgg kbgr kbkb kbkg kbkk kbkr kbra kbrb kbre kbrg kbrk kbru kbua kbub kbue kbuk kbur kbuu kea- keag keak kear keau keba kebb kebe kebr kebu keek keer kega kege kegg kegk kegr keka kekb keke keku ker- kera kerb kere kerk kerr keru keug keur kgab kgak kgba kgbb kgbr kgeb kgga kggg kggr kgra kgrb kgre kgrg kgrk kgrr kgua kkaa kkag kkar kkba kkbb kkbe kkbg kkbr kkea kkeg kkgb kkgr kkkk kkrb kkre kkrk kkrr kkua kkuu krab krae krag krak krar krba krbb krbe krbg krbk krbr krea kreb kree krek kreu krka krke krkk krkr krku krrb krre krrg krrk krrr krua krue krug kruk krur kuar kuau kuba kubb kube kubr kubu kuek kueu kuga kugb kuge kugr kuka kuke kukk kuku kura kurb kure kurk kurr kuru kuub kuuk kuur kuuu raab raag raak raba rabb rabe rabk rabu raeg raer raga rage ragg ragu raka rake rakk raku rara rarb rare rark raua raub raue rauk rbbb rbbr rea- reae reak rear reau reba rebb rebe rebk rebu reeb reek rega rege regr regu reka reke rera rere rerg reru reue reuk reuu rgba rgbe rrrr ruag ruba rubb rube rubu ruer ruga ruge rugg ruka ruke rukk ruku rura rure ruru uaru uaua ubar ubba ubbe ubek uber ubra ueba ugab ugar ugra ugur uguu ukba ukek ukeu ukra ukur urau urba urbe ure- urea urga urge urgu urka urke urra urre uruk urur uuuu

-aaa- aaaee aaarg aabaa aabba aabga aabra aaker aakre aarau abaab ababa ababe ababu abaer abaga abaka abake abara abare abaru abbar abbur abear abeau abeba abebe abeer abega abege abegg abekr abera abere aberg aberr