-er b-u bbb bbe bbi bbk bbr bbt bbu be- beb bee bei bek ber bet beu bez bi- bib bie bii bik bir bit biu biz bkb bke bkk bkr bkt brb bre bri brk brr brt bru brz btb bte bti btk btr btt btu btz bub bue bui buk bur but buu buz bze bzr bzu bzz ebb ebe ebi ebk ebr ebt ebu eeb eee eek eer eet eib eie eii eik eir eit eiu ekb eke eki ekr ekt eku erb ere eri erk err ert eru erz etb ete eti etk etr ett etu etz eu- eub eue eui eur eut eze ezr ezz ibb ibe ibi ibk ibr ibt ibu ibz ie- iee iei iek ier iet iib iie iii iir iit iiu ikb ike iki ikk ikr ikt iku ir- irb ire iri irk irr irt iru itb ite iti itk itt itu itz iu- iub iue iui iur iut iuz ize izi izu izz k-t k-z kbb kbe kbi kbk kbr kbu kbz ke- keb kee kei kek ker ket kez kib kie kii kik kir kit kiu kiz kkb kke kki kkk kkr kkt kku kri krk krr krt kru ktb kte ktk ktr ktt ktu kub kue kui kuk kur kut kuu rbb rbe rbi rbk rbr rbt rbu re- reb ree rei rek rer ret reu rez rib rie rii rik rir rit riz rkb rke rkk rkt rku rkz rrb rri rrk rrr rrt rru rtb rte rti rtk rtr rtt rtu rtz rub rue rui ruk rur rut ruu ruz rzb rze tbb tbe tbi tbk tbr tbt tbu tbz te- teb tee tei tek ter tet teu tez tib tie tii tik tir tit tiu tiz tkb tke tkk tkr tkt tkz trb tre tri trk trr trt tru trz ttb tte tti ttk ttr ttt ttu tub tue tui tuk tur tut tuu tuz tze tzu ubb ube ubi ubk ubr ubt ubu ueb uee uei uer uet uib uie uii uir uit uiu ukb uke uki ukk ukr uku ukz ur- urb ure uri urk urr urt uru urz utb ute uti utk utr utt utu utz uue uur uut uuu uzb uzi uzu zbb zbr zbt zeb zee zek zer zet zez zib zie zik zir zit ziz zte ztr zub zui zuk zur zut zuz zzr zzt zzz

bbbb bbeb bbet bebb bebe bebi beeb beek beer beet beik beir beit beke beki bere beri berk berr bert beru bete beti bett betu betz beuk beur beze bezi bezu bibb bibe bibi bieb bier biet bieu bike biku birb bire biri birk birr birt biru bite bitt bitu bitz bize bizu bizz breb bree brei brek brer bret brez brie brik brit briz brkb brrr brue brut bruz btek btie btrt bttb bubb bube bubi bubu buer bueu buie buik buir buit buiu buke buki bukk buku bur- burb bure buri burk burr burt buru burz but- bute buti butt butz buuz buze buzi buzz bzer bzie bzrk bzzt bzzz ebbr eber ebit ebru ebur eeee eeke eete eetu eeze eiei eier eike eiki eire eitb eiti eitr ekeb ekek eker eket ekki ekur erbb erbe ereb erei erer eret erez erie erik erit eriu eriz erke erki erre ertu ertz erub erur erzi etbr etee eter etik etre ette etti ettu etui etuz eubi euer eur- eure eurt ezek ezer ezri ezuz i-be ibet ibie ibri ibtb ieet ieie iere ieri iett iiie iiii iiit iitr iitt ikee iker ikki ikri ikue irbe iree irer iri- irie irki irre irri irte irti itbe itek iter itet itie itri itur iuiu izet izki izze kbbb kbbe kbbi kbbk kbbr kbbt kbbu kbbz kbeb kbee kbek kber kbet kbez kbib kbie kbik kbit kbiu kbiz kbkb kbkk kbkr kbkz kbrb kbre kbri kbrk kbrt kbru kbrz kbtb kbte kbtk kbtr kbtt kbtz kbub kbue kbuk kbur kbut kbuu kbuz kbze kbzi kbzt kbzu kbzz kebb kebe kebi kebr kebt kebu keek keer keet keib keii keik keir kekb keke keki keku ker- kerb kere keri kerk kerr kert keru kerz ket- kete keti ketk ketr kett ketu keur kezb keze kezi kezr kezz kibb kibe kibi kibr kibt kibu kibz kier kieu kiez kiii kiik kiit kiiu kiki kikk kikr kikt kiku kikz kirb kiri kirk kirr kirt kiru kite kiti kitr kitt kitu kitz kiur kiuu kizz kkbb kkbe kkbi kkbr kkbt kkbz kkez kkik kkit kkkk kkrb kkre kkrk kkrr kkrt kkrz kktk kktu kktz kkut kkuu kkzu kkzz krbb krbe krbi krbk krbr krbt krbz kreb kree krei krek kret kreu krez krib krik krit kriz krke krki krkk krkr krku krkz krrb krre krri krrk krrr krrt krrz krti krtk krtr krtz krue krui kruk krur kruz krze krzi krzk krzr krzz ktbb ktbr ktbt ktbu ktbz ktee ktek ktez ktib ktie ktik ktkb ktke ktkk ktkr ktkt ktku ktkz ktrb ktre ktri ktrk ktrr ktrt ktru ktrz ktti kttk kttr kttt kttu kttz ktub ktui ktuz ktzk ktzr ktzt ktzu ktzz kubb kube kubr kubu kuei kuek kueu kuie kuik kuke kuki kukk kuku kurb kure kuri kurk kurr kurt kuru kurz kute kuti kutr kutt kutu kutz kuub kuuk kuur kuuu kuuz kuze kuzu kuzz kzbb kzbe kzbi kzbk kzbr kzbt kzbz kzee kzer kziz kzke kzkr kzkz kzrb kzrk kzrr kzrz kztb kzti kztk kzue kzuu kzuz kzzb kzzi kzzk kzzr kzzt kzzz rbbb rbbr rebb rebe rebk rebu reeb reek reet reii reik reir reit reiu reiz reke reki rekt rere reri rert reru rete reti retr rett retz reue reuk reut reuu reze rezi rezu rib- ribe ribu riek rier riet rieu riez rike riki rikk riku rire riri rite riti ritt ritu ritz riue rize rizi rizk rizu rizz rrrr rtee rtei rubb rube rubi rubu ruer ruet ruez ruit ruiz ruke ruki rukk ruku rure ruri ruru rute ruti rutt rutu ruze ruzi tbit tbrb tebu teek teer teet teez teie