-er a-a a-b aaa aab aad aae aak aam aar ab- aba abb abd abe abk abm abr ad- ada adb add ade adk adm adr aea aeb aed aee aek aem aer aka akb akd ake akk akm akr ama amb amd ame amk amm amr ar- ara arb ard are ark arm arr baa bab bad bae bak bam bar bba bbb bbd bbe bbk bbm bbr bda bdb bdd bde bdk bdm bdr be- bea beb bed bee bek bem ber bka bkb bke bkk bkm bkr bma bmb bmd bme bmk bmm bmr bra brb brd bre brk brm brr daa dab dad dae dak dam dar dba dbb dbd dbe dbk dbm dbr dda ddb ddd dde ddk ddm ddr de- dea deb ded dee dek dem der dka dkb dke dkk dkm dkr dma dmb dmd dme dmk dmm dmr dra drb drd dre drk drm drr eaa eab ead eae eak eam ear eba ebb ebd ebe ebk ebm ebr ed- eda edb edd ede edk edm edr eea eeb eed eee eek eem eer eka ekb ekd eke ekr em- ema emb emd eme emk emm emr era erb erd ere erk erm err ka- kaa kab kad kae kak kam kar kba kbb kbd kbe kbk kbm kbr kda kdb kde kdk kdm kdr ke- kea keb ked kee kek kem ker kkb kke kkk kkm kkr kma kmb kmd kme kmk kmm kra krd krk krr m-r maa mab mad mae mak mam mar mba mbb mbd mbe mbk mbm mbr mda mdb mdd mde mdk mdm mdr mea meb med mee mek mem mer mka mkb mkd mke mkk mkm mkr mma mmb mmd mme mmk mmm mmr mra mrb mrd mre mrk mrm mrr ra- raa rab rad rae rak ram rar rba rbb rbd rbe rbk rbm rbr rda rdb rdd rde rdm rdr re- rea reb red ree rek rem rer rkb rke rkk rkm rma rmb rmd rme rmm rmr rra rrb rrd rrk rrm rrr

a-ak a-be aaaa aaab aaad aaae aaam aaar aaba aabb aabd aabm aada aade aaea aaem aaka aake aama aamb aamd aame aamr aara aard aare aarm abaa abab abad abae abak abam abar abb- abba abbb abbe abbr abda abed abee aber abma abmb abra adaa adab adad adae adak adam adar adba adda addd adde addr adea adeb adee adem ader adma admb adme admr adra adre aede aeer aeka aer- aera aerd akaa akae akam akar aked akee aker akka akr- akra akre amaa amad amae amam amar amb- amba ambe ambr amda amed amee amer amka amm- amma amme amra arab arad arae arak aram arar arba arbe arda arde ardm area ared aree arek arem arka arke arma armd arme armm arr- arra arre arrk arrr baaa baad baak baam baar baba babb babe babm babr bada badb badd bade badr baed baek baer bak- baka bake bakr bama bamb bame bamm bar- bara barb bard bare bark barm barr bbad bbbb bbdd bbeb bd-r bdrm bead beak beam bear beba bebb bebe beda bede beeb beed beek beem beer beka beke bema beme bera berd bere berk berm berr bmaa bmdb brab brad brae brak bram brda brdm brea breb bred bree brek brem brer brka brkb brrm brrr daab daad daae daam daar daba dabb dada dade daeb daem daer daka dake dama damb dame damm dara darb dard dare dark darr dbar dddd ddre dead deae deak dear deba debe deda dedd dede deeb deed deek deem deer dek- deka deke dem- dema demb demd deme der- dera derb dere derk derm derr dkba dmaa dmab dmae dmba dmea dmrb draa drab drad drak dram drar drba drda drea dred dree drek drem drmk drra eaba eada eadb eadd eama eame eara earb eard eare ebam ebba ebbr ebed eber edad edam edar edda edde eddm ede- edea edem eder edma edme edra edrm eede eeea eeee eeka eeke eera eka- ekab ekam ekeb eked ekek eker ekka ekma emad emae emam emar emba embd embe embr emek emer emma emme emra emre erad eram erba erbb erbe erda erde ereb ered erem erer erke erma erme erra erre kaaa kaab kaak kaam kaar kaba kabb kabd kabe kabr kad- kada kadd kade kadm kadr kaer kaka kake kakk kakm kam- kama kamb kame kamm kamr kara karb kard kare kark karm karr kbaa kbab kbad kbae kbak kbam kbar kbba kbbb kbbd kbbe kbbk kbbm kbbr kbdb kbde kbdr kbeb kbed kbee kbek kber kbkb kbkk kbkr kbmb kbme kbmr kbra kbrb kbrd kbre kbrk kdaa kdab kdad kdae kdak kdam kdar kdbb kdbm kdbr kddb kddd kddk kddr kdeb kdem kdka kdkb kdkd kdkk kdkr kdma kdmd kdmr kdrb kdrm kea- kead keak keam kear keba kebb kebe kebr keda kedb kedd kede kedm kedr keed keek keem keer keka kekb keke kema kemb keme kemm kemr ker- kera kerb kere kerk kerm kerr kkaa kkam kkar kkba kkbb kkbd kkbe kkbr kkda kkdd kkdm kkea kked kkkk kkma kkmk kkmr kkrb kkre kkrk kkrr kmad kmae kmak kmam kmbd kmbr kmdb kmdr kmea kmed kmem kmer kmke kmkk kmme kmmk kmmm kmmr kmrb kmrr krab krad krae krak kram krar krba krbb krbd krbe krbk krbm krbr krda krdd krde krdm krdr krea kreb kred kree krek krem krka krkd krke krkk krkr krma krmb krmd krme krmr krrb krre krrk krrm krrr maaa maad maak maam maar maba mabe mada madb madd made maee maem maer maka make mama mame mar- mara mard mare mark marm marr mbam mbba mbda mbdb mbed mddm mdea mdma mdme mdmk mdra mead meak mear mebe meda medb medd mede meed meek meem meer meka meke mema meme memr mer- mera merb merd mere merk merm mkad mkak mker mmaa mmab mmar mmda mmdb mmea mmmd mmmm mrad mrbb mrbm mrda mrdd mreb mred mree mrkr mrmd raab raad raak raam