-er bbb bbe bbi bbk bbm bbr bbt be- beb bee bei bek bem ber bet bi- bib bie bii bik bim bir bit bkb bke bkk bkm bkr bkt bmb bme bmi bmk bmm bmr bmt brb bre bri brk brm brr brt btb bte bti btk btm btr btt ebb ebe ebi ebk ebm ebr ebt eeb eee eek eem eer eet eib eie eii eik eim eir eit ekb eke eki ekr ekt em- emb eme emi emk emm emr emt erb ere eri erk erm err ert etb ete eti etk etm etr ett ibb ibe ibi ibk ibm ibr ibt ie- iee iei iek iem ier iet iib iie iii iim iir iit ikb ike iki ikk ikr ikt im- imb ime imi imm imt ir- irb ire iri irk irm irr irt itb ite iti itk itm itt k-t kbb kbe kbi kbk kbm kbr ke- keb kee kei kek kem ker ket kib kie kii kik kim kir kit kkb kke kki kkk kkm kkr kkt kmb kme kmi kmk kmm kmt kri krk krr krt ktb kte ktk ktm ktr ktt m-r mbb mbe mbi mbk mbm mbr mbt meb mee mei mek mem mer met mi- mib mie mii mik mim mir mit mkb mke mkk mkm mkr mkt mmb mme mmi mmk mmm mmr mmt mrb mre mri mrk mrm mrr mrt mtb mte mti mtk mtm mtr mtt rbb rbe rbi rbk rbm rbr rbt re- reb ree rei rek rem rer ret rib rie rii rik rim rir rit rkb rke rkk rkm rkt rmb rme rmi rmm rmr rmt rrb rri rrk rrm rrr rrt rtb rte rti rtk rtm rtr rtt tbb tbe tbi tbk tbm tbr tbt te- teb tee tei tek tem ter tet tib tie tii tik tim tir tit tkb tke tkk tkm tkr tkt tmb tme tmi tmk tmm tmr tmt trb tre tri trk trm trr trt ttb tte tti ttk ttm ttr ttt

bbbb bbeb bbet bebb bebe bebi beeb beek beem beer beet beik beim beir beit beke beki beme bere beri berk berm berr bert bete beti bett bibb bibe bibi bieb bier biet bike birb bire biri birk birr birt bite bitt bmir bmmi breb bree brei brek brem brer bret brie brik brim brit brkb brrm brrr btek btie btrt bttb ebbr eber ebit eeee eeke eete eiei eier eike eiki eime eimi eire eitb eiti eitm eitr ekeb ekek eker eket ekki embe embi embr emek emer emet emii emim emir emit emme emmi emre emte erbb erbe ereb erei erem erer eret erie erik erim erit erke erki erme erre etbr etee etem eter etik etim etre etrm ette etti i-be ibbm ibet ibie ibim ibri ibtb ieet ieie ieme iere ieri ietm iett iiie iiii iiit iitm iitr iitt ikee iker ikki ikri imbe imbi imer imet imir imit imme immi immt imre imri imrr irbe irbm iree irem irer iri- irie irki irre irri irte irti itbe itek item iter itet itie itim itme itri kbbb kbbe kbbi kbbk kbbm kbbr kbbt kbeb kbee kbek kber kbet kbib kbie kbik kbim kbit kbkb kbkk kbkr kbmb kbme kbmi kbmr kbmt kbrb kbre kbri kbrk kbrt kbtb kbte kbtk kbtm kbtr kbtt kebb kebe kebi kebr kebt keek keem keer keet keib keii keik keir kekb keke keki kemb keme kemi kemm kemr ker- kerb kere keri kerk kerm kerr kert ket- kete keti ketk ketr kett kibb kibe kibi kibr kibt kier kiii kiik kiit kiki kikk kikr kikt kimb kime kimi kimm kimt kirb kiri kirk kirr kirt kite kiti kitr kitt kkbb kkbe kkbi kkbr kkbt kkik kkim kkit kkkk kkmi kkmk kkmr kkmt kkrb kkre kkrk kkrr kkrt kktk kmbi kmbr kmei kmem kmer kmet kmit kmke kmkk kmkt kmme kmmk kmmm kmmr kmmt kmrb kmri kmrr kmtb kmti kmtk kmtr kmtt krbb krbe krbi krbk krbm krbr krbt kreb kree krei krek krem kret krib krik krim krit krke krki krkk krkr krmb krme krmr krmt krrb krre krri krrk krrm krrr krrt krti krtk krtm krtr ktbb ktbr ktbt ktee ktek ktem ktib ktie ktik ktkb ktke ktkk ktkr ktkt ktmb ktme ktmk ktmm ktmr ktmt ktrb ktre ktri ktrk ktrm ktrr ktrt ktti kttk kttr kttt mbim mebe meek meem meer meet meik meir meit meke meki meme memr mer- merb mere meri merk merm mert met- mete meti mett miee miek miem mier miet miii miit mike miki mikk mim- mime mimi mire miri mirk mirr mirt mit- mitb mite miti mitm mitt mker mkie mmii mmmm mrbb mrbm mreb mree mrkr mrtm mrtt mtre mtrr mttr rbbb rbbr rbmk rebb rebe rebk reeb reek reem reet reii reik reim reir reit reke reki rekt reme remi rere reri rert rete reti retr rett rib- ribe riek riem rier riet rike riki rikk rime rimi rimm rire riri rite riti ritt rrkm rrrr rtee rtei rtmi tbit tbrb teek teem teer teet teie teim teir teke teme ter- tere teri terk term terr tete teti tetr tett tibi tie- tiee tiei tier tiet tiit tike tiki time timi timm tirb tire tiri tirr tite titi titt tmbr tmmk tmtt tre- tree trei trek trem tret tri- trib trie trik trim trit trmb trmi trmk trte trtr ttbb tter ttim tttt

-tree b-r-k bbbee be-er bebek beber bebti beebe beeke beeri beete beibi beier beire beite beker bekim bekir bekke bekti bembe bemer bemet berbe berei berek beret berie berim berit berk- berke berme berre berri berte berti betee beter betie betim betke betre bett- bette betti bibbe biber bibie bibri biebe bieke biere bieri biert bieti biker bikie birie birme birmi bitek biter bitit bitki bitte bitti bkite bmiii breek breem breer breet breik breim breit breke breme bremm brere brett bribe brier brike brime brimm brite britt brmmm brrrr btr-t ebber ebbet ebbie ebert ebibe ebike eeeee eerie eerik eetti eiker eimke eirie