-er b-u bbb bbe bbi bbk bbl bbm bbr bbt bbu be- beb bee bei bek bel bem ber bet beu bi- bib bie bii bik bil bim bir bit biu bkb bke bkk bkl bkm bkr bkt blb ble bli blk bll blm blr blt blu bmb bme bmi bmk bml bmm bmr bmt bmu brb bre bri brk brl brm brr brt bru btb bte bti btk btl btm btr btt btu bub bue bui buk bul bum bur but buu ebb ebe ebi ebk ebl ebm ebr ebt ebu eeb eee eek eel eem eer eet eib eie eii eik eil eim eir eit eiu ekb eke eki ekl ekr ekt eku elb ele eli elk ell elm elr elt elu em- emb eme emi emk eml emm emr emt emu erb ere eri erk erl erm err ert eru etb ete eti etk etl etm etr ett etu eu- eub eue eui eul eur eut ibb ibe ibi ibk ibl ibm ibr ibt ibu ie- iee iei iek iel iem ier iet iib iie iii iil iim iir iit iiu ikb ike iki ikk ikl ikr ikt iku il- ilb ile ili ilk ill ilm ilr ilt ilu im- imb ime imi iml imm imt imu ir- irb ire iri irk irl irm irr irt iru itb ite iti itk itl itm itt itu iu- iub iue iui ium iur iut k-t kbb kbe kbi kbk kbl kbm kbr kbu ke- keb kee kei kek kel kem ker ket kib kie kii kik kil kim kir kit kiu kkb kke kki kkk kkl kkm kkr kkt kku kl- klb kli klm klr klt klu kmb kme kmi kmk kml kmm kmt kmu kri krk krl krr krt kru ktb kte ktk ktl ktm ktr ktt ktu kub kue kui kuk kul kum kur kut kuu lbb lbe lbi lbk lbl lbm lbr lbt lbu leb lee lei lek lel lem ler let leu lib lie lii lik lil lim lir lit liu lkb lkl lkr lkt llb lle lli llk lll llm llr llt llu lmb lme lmi lmk lml lmm lmr lmt lmu lrb lri lrk lrm lrr lrt lru ltb lte lti ltk ltl ltm ltr ltt ltu lub lue lui luk lul lum lur lut luu m-r mbb mbe mbi mbk mbl mbm mbr mbt mbu meb mee mei mek mel mem mer met meu mi- mib mie mii mik mil mim mir mit miu mkb mke mkk mkl mkm mkr mkt mku mlb mle mli mlk mll mlm mlr mlt mlu mmb mme mmi mmk mml mmm mmr mmt mmu mrb mre mri mrk mrl mrm mrr mrt mru mtb mte mti mtk mtl mtm mtr mtt mtu mub mue mui muk mul mum mur mut muu rbb rbe rbi rbk rbl rbm rbr rbt rbu re- reb ree rei rek rel rem rer ret reu rib rie rii rik ril rim rir rit rkb rke rkk rkm rkt rku rle rli rll rlm rlr rlt rlu rmb rme rmi rml rmm rmr rmt rrb rri rrk rrl rrm rrr rrt rru rtb rte rti rtk rtl rtm rtr rtt rtu rub rue rui ruk rum rur rut ruu tbb tbe tbi tbk tbl tbm tbr tbt tbu te- teb tee tei tek tel tem ter tet teu tib tie tii tik til tim tir tit tiu tkb tke tkk tkl tkm tkr tkt tle tli tlk tll tlm tlr tlt tlu tmb tme tmi tmk tml tmm tmr tmt tmu trb tre tri trk trl trm trr trt tru ttb tte tti ttk ttl ttm ttr ttt ttu tub tue tui tuk tul tum tur tut tuu ubb ube ubi ubk ubl ubr ubt ubu ueb uee uei uel uem uer uet uib uie uii uil uim uir uit uiu ukb uke uki ukk ukl ukr uku ulb ule uli ulk ull ulm ulr ult ulu um- umb ume umi uml umm umr umt umu ur- urb ure uri urk url urm urr urt uru utb ute uti utk utl utm utr utt utu uue uum uur uut uuu

bbbb bbeb bbet bblb bebb bebe bebi beeb beek beel beem beer beet beik beil beim beir beit beke beki bele beli belk bell belm belt belu beme bemu bere beri berk berm berr bert beru bete beti bett betu beuk beur bibb bibe bibi bibl bieb biel bier biet bieu bike biku bile bili bilk bill bilt bilu birb bire biri birk birl birr birt biru bite bitt bitu blbt bleb blee blei blek blem blet bleu blik blim blir blit blkb blme blub blue blum blur blut bmir bmmi breb bree brei brek brel brem brer bret brie brik bril brim brit brkb brrm brrr brue brum brut btek btie btrt bttb bubb bube bubi bubu buel buem buer bueu buie buik buir buit buiu buke buki bukk buku bulb bule buli bulk bull bult bulu bum- bumb bur- burb bure buri burk burl burm burr burt buru but- bute buti butt ebbr ebel eber ebit ebli ebru ebul ebur eeee eeke eele eete eetu eiei eier eike eiki eile eime eimi eire eitb eiti eitm eitr ekeb ekek eker eket ekki ekur el-b elbe elbi elbu elee elek elem eler elet elie elik elil elim elit elke elki elle elli ellu elme elml elte elue elui elul elum embe embi embr emek emel emer emet emeu emii emil emim emir emit emle emlm emme emmi emml emmu emre emte emul erbb erbe ereb erei erel erem erer eret erie erik eril erim erit eriu erke erki erle erli erll erme erre ertl ertu erub erum erur etbr etee etel etem eter etik etim etre etrm ette etti ettu etui eubi euer eule eur- eure eurt i-be ibbm ibet ibie ibim ible ibml ibri ibtb ibtl ieet ieie iele ieme iere ieri ietm iett iiie iiii iiit iitm iitr iitt iium ikee iker ikki ikri ikue ilbm ile- ilek iler