-ic bbb bbc bbi bbk bbm bbo bbr bbt bcb bcc bci bck bcm bco bcr bct bi- bib bic bii bik bim bio bir bit bkb bkc bkk bkm bko bkr bkt bmb bmc bmi bmk bmm bmo bmr bmt bob boc boi bok bom boo bor bot brb bri brk brm bro brr brt btb btc bti btk btm bto btr btt c-- cbb cbc cbi cbk cbm cbo cbr cbt ccb ccc cci cck ccm cco ccr cct ci- cib cic cii cik cim cio cir cit ckb ckc cki ckm cko ckt cmb cmc cmi cmk cmm cmo cmr cmt co- cob coc coi cok com coo cor cot crb crc cri crk crm cro crr crt ctb ctc cti ctk ctm cto ctr ctt ibb ibc ibi ibk ibm ibo ibr ibt icb icc ici ick icm ico icr ict iib iic iii iim iio iir iit ikb ikc iki ikk iko ikr ikt im- imb imc imi imm imo imt io- iob ioc ioi iom ioo ior iot ir- irb irc iri irk irm iro irr irt itb itc iti itk itm ito itt k-t kbb kbc kbi kbk kbm kbo kbr kcb kcc kci kck kcm kcr kct kib kic kii kik kim kio kir kit kkb kkc kki kkk kkm kkr kkt kmb kmc kmi kmk kmm kmo kmt kob koc koi kok kom koo kor kot krc kri krk kro krr krt ktb ktc ktk ktm kto ktr ktt m-o m-r mbb mbc mbi mbk mbm mbo mbr mbt mc- mcb mcc mci mck mcm mco mcr mct mi- mib mic mii mik mim mio mir mit mkb mkc mkk mkm mko mkr mkt mmb mmc mmi mmk mmm mmo mmr mmt mob moc moi mok mom moo mor mot mrb mrc mri mrk mrm mro mrr mrt mtb mtc mti mtk mtm mto mtr mtt o-i ob- obb obc obi obk obm obo obr obt oc- ocb occ oci ock ocm oco ocr oct oib oic oii oik oim oio oir oit okb okc oki okk oko okr om- omb omc omi omm omo omr omt oo- oob ooc ooi ook oom ooo oor oot or- orb orc ori ork orm oro orr ort ot- otb otc oti otk otm oto otr ott rbb rbc rbi rbk rbm rbo rbr rbt rcb rcc rci rcm rco rcr rct rib ric rii rik rim rio rir rit rkb rkc rkk rkm rko rkt rmb rmc rmi rmm rmo rmr rmt rob roc roi rok rom roo ror rot rrb rrc rri rrk rrm rrr rrt rtb rtc rti rtk rtm rto rtr rtt tbb tbc tbi tbk tbm tbo tbr tbt tcb tcc tci tck tcm tco tcr tct tib tic tii tik tim tio tir tit tkb tkc tkk tkm tko tkr tkt tmb tmc tmi tmk tmm tmo tmr tmt to- tob toc toi tok tom too tor tot trb trc tri trk trm tro trr trt ttb ttc tti ttk ttm tto ttr ttt

bbbb bbci bbcm bbrc bcbc bccc bcci bccm bcit bcor bctc bibb bibi bibo bicc bici bick bico biko bimo bio- bioc bioi biot birb biri birk biro birr birt bitc bito bitt bmci bmic bmir bmmi bmoc bmtc bobb bobi bobo bock bocm boco boi- boii boim boit boki boko bomb bomi bomt boob booc book boom boor boot bor- bori bork borm boro borr bort botb boti boto bott brcb bric brik brim brio brit brkb brmc brob broc brok brom broo bror brot brrm brrr brtc btcc btob btor btrc btrt bttb c-bo cbbc cbcc cbcm cbcr cbct cbir cbit cbkm cbko cbkr cbot cbrm cbrt cbtc ccbc cccb cccc ccci cccm ccic ccii ccim ccir cckm ccmb ccmc ccmm ccob ccoc ccom ccrc ccri ccrt cctb cctc cctt cibc cibi cibo cicc cici cico cicr cict ciii ciit ciko cikr cimb cimi cimm cimo cimr ciob cior cirb circ ciri cirk cirm ciro cirr cirt citb citi cito citt ckbc ckbi ckck ckcm ckco ckmo ckob ckoc ckoi ckom ckoo ckor ckot ckrc ckrm cktb cmbc cmcc cmii cmir cmmb cmmc cmmi cmoc cmot cmri cmrr cmtc cobb cobi cobo cock coco coct coir coit cok- coko com- comb comc comm como comr coob cook coom coot cor- corb corc cori cork corm coro corr cort cotb cotc coti coto cott crbc crcc crcr crib cric crik crim crit crkc crmb crmo crob croc crok crom croo cror crot crrt crtc crtm ctbi ctic ctmo ctor ctot ctrc ctrm ibbm ibim ibot ibrc ibri ibro ibtb ibtc icbc icbm iccb iccc icci icco iccr icct icmc icmi icmm icmt icoc icom icor icrc icrm icrr icrt iiii iiio iiit iimc iioi iioo iirc iitm iitr iitt ikki ikko ikmo ikom ikoo ikri imbi imcb imci imck imco imir imit immi immo immt imok imrc imri imro imrr imto iobi ioci ioii ioio ioit ioko iomo iooi iooo iori ioto irbm ircc iri- iric irio irki irmc irmo irob iroc irrc irri irti itcm itic itim itko itmo itoi itoo itor itri itto k-ci kbbb kbbc kbbi kbbk kbbm kbbo kbbr kbbt kbcb kbci kbck kbco kbcr kbct kbib kbic kbik kbim kbio kbit kbkb kbkk kbko kbkr kbmb kbmc kbmi kbmo kbmr kbmt kbob kboc kboi kbok kboo kbot kbrb kbrc kbri kbrk kbro kbrt kbtb kbtc kbtk kbtm kbto kbtr kbtt kcbc kcbi kcbk kcbr kccb kccc kcci kcck kccr kcct kcic kcii kcim kcir kcit kckc kckk kckm kcko kckr kcmb kcmc kcmi kcmk kcmm kcmo kcmr kcmt kcob kcom kcor kcot kcrc kcri kcro kcrr kcrt kctb kctc kcti kcto kibb kibc kibi kibo kibr kibt kicb kicc kick kicm kicr kict kiic kiii kiik kiit kikc kiki kikk kiko kikr kikt kimb kimi kimm kimo kimt kioc kioi kiok kioo kiot kirb kirc kiri kirk kiro kirr kirt kitc kiti kito kitr kitt kkbb kkbi kkbo kkbr kkbt kkcb kkci kkck kkcm kkco kkcr kkct kkic