-er a-a a-b a-t aaa aab aae aak aam aar aat ab- aba abb abe abk abm abr abt aea aeb aee aek aem aer aet aka akb ake akk akm akr ama amb ame amk amm amr amt ar- ara arb are ark arm arr art at- ata atb ate atm atr att baa bab bae bak bam bar bat bba bbb bbe bbk bbm bbr bbt be- bea beb bee bek bem ber bet bka bkb bke bkk bkm bkr bkt bma bmb bme bmk bmm bmr bmt bra brb bre brk brm brr brt bta btb bte btk btm btr btt eaa eab eae eak eam ear eat eba ebb ebe ebk ebm ebr ebt eea eeb eee eek eem eer eet eka ekb eke ekr ekt em- ema emb eme emk emm emr emt era erb ere erk erm err ert eta etb ete etk etm etr ett k-t ka- kaa kab kae kak kam kar kat kba kbb kbe kbk kbm kbr ke- kea keb kee kek kem ker ket kkb kke kkk kkm kkr kkt kma kmb kme kmk kmm kmt kra krk krr krt kta ktb kte ktk ktm ktr ktt m-r maa mab mae mak mam mar mat mba mbb mbe mbk mbm mbr mbt mea meb mee mek mem mer met mka mkb mke mkk mkm mkr mkt mma mmb mme mmk mmm mmr mmt mra mrb mre mrk mrm mrr mrt mta mtb mte mtk mtm mtr mtt ra- raa rab rae rak ram rar rat rba rbb rbe rbk rbm rbr rbt re- rea reb ree rek rem rer ret rkb rke rkk rkm rkt rma rmb rme rmm rmr rmt rra rrb rrk rrm rrr rrt rta rtb rte rtk rtm rtr rtt taa tab tae tak tam tar tat tba tbb tbe tbk tbm tbr tbt te- tea teb tee tek tem ter tet tka tkb tke tkk tkm tkr tkt tma tmb tme tmk tmm tmr tmt tra trb tre trk trm trr trt tta ttb tte ttk ttm ttr ttt

a-ak a-be aaaa aaab aaae aaam aaar aaba aabb aabm aabt aaea aaem aaka aake aama aamb aame aamr aara aare aarm aart aata aatk aatt abaa abab abae abak abam abar abat abb- abba abbb abbe abbr abbt abee aber abet abma abmb abmt abra abta aeer aeka aemt aer- aera aeta aetr aett akaa akae akam akar akee aker akka akr- akra akre akte amaa amae amam amar amat amb- amba ambe ambr amee amer amet amka amm- amma amme amra amta amte amtk arab arae arak aram arar arat arba arbe area aree arek arem aret arka arke arma arme armm armt arr- arra arre arrk arrr arrt arta arte artr at-t ataa atab atae atak atar atat atea atee atem ater atka atkt atm- atma atme atra atre atrk atrm atta atte attr baaa baak baam baar baat baba babb babe babm babr baek baer bak- baka bake bakr bakt bama bamb bame bamm bar- bara barb bare bark barm barr bart bata bate batt bbbb bbeb bbet beak beam bear beat beba bebb bebe beeb beek beem beer beet beka beke bema beme bera bere berk berm berr bert beta bete bett bmaa brab brae brak bram brat brea breb bree brek brem brer bret brka brkb brrm brrr btaa btek btrt bttb eaba eama eame eara earb eare eart eata eate ebam ebba ebbr eber eeea eeee eeka eeke eera eeta eete eka- ekab ekam ekeb ekek eker eket ekka ekma ekta emae emam emar emba embe embr emek emer emet emma emme emra emre emta emte eram erat erba erbb erbe ereb erem erer eret erke erma erme erra erre erta etak etam etat etbr etee etem eter etka etra etre etrm etta ette kaaa kaab kaak kaam kaar kaat kaba kabb kabe kabr kaer kaet kaka kake kakk kakm kakt kam- kama kamb kame kamm kamr kamt kara karb kare kark karm karr kart kat- kata katb kate katk katm katr katt kbaa kbab kbae kbak kbam kbar kbat kbba kbbb kbbe kbbk kbbm kbbr kbbt kbeb kbee kbek kber kbet kbkb kbkk kbkr kbmb kbme kbmr kbmt kbra kbrb kbre kbrk kbrt kbta kbtb kbte kbtk kbtm kbtr kbtt kea- keak keam kear keat keba kebb kebe kebr kebt keek keem keer keet keka kekb keke kema kemb keme kemm kemr ker- kera kerb kere kerk kerm kerr kert ket- keta kete ketk ketr kett kkaa kkam kkar kkat kkba kkbb kkbe kkbr kkbt kkea kkkk kkma kkmk kkmr kkmt kkrb kkre kkrk kkrr kkrt kktk kmae kmak kmam kmat kmbr kmea kmem kmer kmet kmke kmkk kmkt kmme kmmk kmmm kmmr kmmt kmrb kmrr kmta kmtb kmtk kmtr kmtt krab krae krak kram krar krat krba krbb krbe krbk krbm krbr krbt krea kreb kree krek krem kret krka krke krkk krkr krma krmb krme krmr krmt krrb krre krrk krrm krrr krrt krta krtk krtm krtr ktaa ktae ktak ktam ktar ktat ktba ktbb ktbr ktbt ktea ktee ktek ktem ktkb ktke ktkk ktkr ktkt ktmb ktme ktmk ktmm ktmr ktmt ktrb ktre ktrk ktrm ktrr ktrt kttk kttr kttt maaa maak maam maar maat maba mabe maee maem maer maka make mama mame mar- mara mare mark marm marr mart mata mate matk matr matt mbam mbba mbta meak mear meat mebe meek meem meer meet meka meke mema meme memr mer- mera merb mere merk merm mert met- meta mete mett mkak mker mmaa mmab mmar mmea mmmm mrbb mrbm mreb mree mrkr mrta mrtm mrtt mtaa mtab mtre mtrr mttr raab raak raam raat raba rabb rabe rabk raer raka rake rakk rakt rama ramb rame ramm rara rarb rare rark rata rate ratk ratt rbbb rbbr rbmk rea- reae reak ream rear reat reba rebb rebe rebk reeb reek reem reet reka reke rekt rema reme rera rere rert reta rete retr rett rrat rrkm rrrr rtee taa- taar taat