bbb bbi bbk bbm bbo bbr bbt bi- bib bii bik bim bio bir bit bkb bkk bkm bko bkr bkt bmb bmi bmk bmm bmo bmr bmt bob boi bok bom boo bor bot brb bri brk brm bro brr brt btb bti btk btm bto btr btt ibb ibi ibk ibm ibo ibr ibt iib iii iim iio iir iit ikb iki ikk iko ikr ikt im- imb imi imm imo imt io- iob ioi iom ioo ior iot ir- irb iri irk irm iro irr irt itb iti itk itm ito itt k-t kbb kbi kbk kbm kbo kbr kib kii kik kim kio kir kit kkb kki kkk kkm kkr kkt kmb kmi kmk kmm kmo kmt kob koi kok kom koo kor kot kri krk kro krr krt ktb ktk ktm kto ktr ktt m-o m-r mbb mbi mbk mbm mbo mbr mbt mi- mib mii mik mim mio mir mit mkb mkk mkm mko mkr mkt mmb mmi mmk mmm mmo mmr mmt mob moi mok mom moo mor mot mrb mri mrk mrm mro mrr mrt mtb mti mtk mtm mto mtr mtt o-i ob- obb obi obk obm obo obr obt oib oii oik oim oio oir oit okb oki okk oko okr om- omb omi omm omo omr omt oo- oob ooi ook oom ooo oor oot or- orb ori ork orm oro orr ort ot- otb oti otk otm oto otr ott rbb rbi rbk rbm rbo rbr rbt rib rii rik rim rio rir rit rkb rkk rkm rko rkt rmb rmi rmm rmo rmr rmt rob roi rok rom roo ror rot rrb rri rrk rrm rrr rrt rtb rti rtk rtm rto rtr rtt tbb tbi tbk tbm tbo tbr tbt tib tii tik tim tio tir tit tkb tkk tkm tko tkr tkt tmb tmi tmk tmm tmo tmr tmt to- tob toi tok tom too tor tot trb tri trk trm tro trr trt ttb tti ttk ttm tto ttr ttt