-er bbb bbe bbi bbk bbm bbo bbr bbt be- beb bee bei bek bem beo ber bet bi- bib bie bii bik bim bio bir bit bkb bke bkk bkm bko bkr bkt bmb bme bmi bmk bmm bmo bmr bmt bob boe boi bok bom boo bor bot brb bre bri brk brm bro brr brt btb bte bti btk btm bto btr btt ebb ebe ebi ebk ebm ebo ebr ebt eeb eee eek eem eeo eer eet eib eie eii eik eim eio eir eit ekb eke eki eko ekr ekt em- emb eme emi emk emm emo emr emt eo- eob eoe eoi eok eom eoo eor eot erb ere eri erk erm ero err ert etb ete eti etk etm eto etr ett ibb ibe ibi ibk ibm ibo ibr ibt ie- iee iei iek iem ier iet iib iie iii iim iio iir iit ikb ike iki ikk iko ikr ikt im- imb ime imi imm imo imt io- iob ioe ioi iom ioo ior iot ir- irb ire iri irk irm iro irr irt itb ite iti itk itm ito itt k-t kbb kbe kbi kbk kbm kbo kbr ke- keb kee kei kek kem keo ker ket kib kie kii kik kim kio kir kit kkb kke kki kkk kkm kkr kkt kmb kme kmi kmk kmm kmo kmt kob koe koi kok kom koo kor kot kri krk kro krr krt ktb kte ktk ktm kto ktr ktt m-o m-r mbb mbe mbi mbk mbm mbo mbr mbt meb mee mei mek mem meo mer met mi- mib mie mii mik mim mio mir mit mkb mke mkk mkm mko mkr mkt mmb mme mmi mmk mmm mmo mmr mmt mob moe moi mok mom moo mor mot mrb mre mri mrk mrm mro mrr mrt mtb mte mti mtk mtm mto mtr mtt o-i ob- obb obe obi obk obm obo obr obt oeb oee oei oem oeo oer oet oib oie oii oik oim oio oir oit okb oke oki okk oko okr om- omb ome omi omm omo omr omt oo- oob ooi ook oom ooo oor oot or- orb ore ori ork orm oro orr ort ot- otb ote oti otk otm oto otr ott rbb rbe rbi rbk rbm rbo rbr rbt re- reb ree rei rek rem reo rer ret rib rie rii rik rim rio rir rit rkb rke rkk rkm rko rkt rmb rme rmi rmm rmo rmr rmt rob roe roi rok rom roo ror rot rrb rri rrk rrm rrr rrt rtb rte rti rtk rtm rto rtr rtt tbb tbe tbi tbk tbm tbo tbr tbt te- teb tee tei tek tem teo ter tet tib tie tii tik tim tio tir tit tkb tke tkk tkm tko tkr tkt tmb tme tmi tmk tmm tmo tmr tmt to- tob toe toi tok tom too tor tot trb tre tri trk trm tro trr trt ttb tte tti ttk ttm tto ttr ttt

bbbb bbeb bbet bebb bebe bebi bebo beeb beek beem beer beet beik beim beir beit beke beki beko beme beo- beok beor beot bere beri berk berm bero berr bert bete beti beto bett bibb bibe bibi bibo bieb bier biet bike biko bimo bio- bioi biot birb bire biri birk biro birr birt bite bito bitt bmir bmmi bobb bobe bobi bobo boee boeo boer boet boi- boie boii boim boit boke boki boko bomb bome bomi bomt boob booe book boom boor boot bor- bore bori bork borm boro borr bort botb bote boti boto bott breb bree brei brek brem breo brer bret brie brik brim brio brit brkb brob broe brok brom broo bror brot brrm brrr btek btie btob btor btrt bttb ebbo ebbr eber ebit eboe eboo ebor ebro eeee eeke eemo eero eete eiei eier eike eiki eiko eime eimi eire eitb eiti eitm eito eitr ekeb ekek eker eket ekki ekoi embe embi embo embr emek emer emet emii emim emir emit emme emmi emor emre emte eoir eore eori eoto erbb erbe ereb erei erem erer eret erie erik erim erio erit erke erki erme ermo erob eroe eroi eroo erre erro etbr etee etem eter etik etim etio etoe etok etre etrm etro ette etti etto i-be ibbm ibet ibie ibim ibot ibri ibro ibtb ieet ieie ieio ieme iere ieri ietm iett iiie iiii iiio iiit iioi iioo iitm iitr iitt ikee iker ikki ikko ikmo ikom ikoo ikri imbe imbi imer imet imir imit imme immi immo immt imok imre imri imro imrr imto iobi ioee ioii ioio ioit ioke ioko iome iomo iooi iooo iore iori iote ioto irbe irbm iree irem irer iri- irie irio irki irmo irob irre irri irte irti itbe itek item iter itet itie itim itko itme itmo itoi itoo itor itri itto kbbb kbbe kbbi kbbk kbbm kbbo kbbr kbbt kbeb kbee kbek kbeo kber kbet kbib kbie kbik kbim kbio kbit kbkb kbkk kbko kbkr kbmb kbme kbmi kbmo kbmr kbmt kbob kboe kboi kbok kboo kbot kbrb kbre kbri kbrk kbro kbrt kbtb kbte kbtk kbtm kbto kbtr kbtt kebb kebe kebi kebr kebt keek keem keer keet keib keii keik keio keir kekb keke keki keko kemb keme kemi kemm kemo kemr keok keom ker- kerb kere keri kerk kerm kero kerr kert ket- kete keti ketk keto ketr kett kibb kibe kibi kibo kibr kibt kier kiii kiik kiit kiki kikk kiko kikr kikt kimb kime kimi kimm kimo kimt kioe kioi kiok kioo kiot kirb kiri kirk kiro kirr kirt kite kiti kito kitr kitt kkbb kkbe kkbi kkbo kkbr kkbt kkik kkim kkit kkkk kkmi kkmk kkmo kkmr kkmt kkob kkoo kkor kkot kkrb kkre kkrk kkro kkrr kkrt kktk kmbi kmbr kmei kmem kmeo kmer kmet kmit kmke kmkk kmko kmkt kmme kmmk kmmm kmmo kmmr kmmt kmob kmoe kmok kmom kmor kmot kmrb kmri kmro kmrr kmtb kmti