-ic bbb bbc bbi bbk bbo bbr bcb bcc bci bck bco bcr bcv bi- bib bic bii bik bio bir biv bkb bkc bkk bko bkr bkv bob boc boi bok boo bor bov brb bri brk bro brr brv bvb bvc bvi bvk bvo bvr bvv c-- cbb cbc cbi cbk cbo cbr cbv ccb ccc cci cck cco ccr ccv ci- cib cic cii cik cio cir civ ckb ckc cki cko co- cob coc coi cok coo cor cov crb crc cri crk cro crr crv cvb cvc cvi cvk cvo cvr cvv i-v ibb ibc ibi ibk ibo ibr ibv icb icc ici ick ico icr icv iib iic iii iio iir ikb ikc iki ikk iko ikr ikv io- iob ioc ioi ioo ior iov ir- irb irc iri irk iro irr irv ivb ivc ivi ivo ivr ivv kbb kbc kbi kbk kbo kbr kcb kcc kci kck kcr kib kic kii kik kio kir kiv kkb kkc kki kkk kkr kkv kob koc koi kok koo kor krc kri krk kro krr krv kvb kvi kvk kvo kvr kvv o-i ob- obb obc obi obk obo obr obv oc- ocb occ oci ock oco ocr ocv oib oic oii oik oio oir oiv okb okc oki okk oko okr oo- oob ooc ooi ook ooo oor oov or- orb orc ori ork oro orr orv ov- ovb ovc ovi ovo ovv rbb rbc rbi rbk rbo rbr rcb rcc rci rco rcr rcv rib ric rii rik rio rir riv rkb rkc rkk rko rkv rob roc roi rok roo ror rov rrb rrc rri rrk rrr rvb rvc rvi rvo rvr rvv vbc vbi vbk vbo vbr vbv vcc vci vco vcr vi- vib vic vii vik vio vir viv vkb vob voc voi vok voo vor vov vrb vrc vri vrk vrr vvb vvc vvi vvo vvr vvv

bbbb bbci bbrc bcbc bccc bcci bcor bcvo bibb bibi bibo bicc bici bick bico biko bio- bioc bioi birb biri birk biro birr bivi bobb bobi bobo bock boco boi- boii boki boko boob booc book boor bor- bori bork boro borr bovi bovo brcb bric brik brio brkb brob broc brok broo bror brrr brvi c-bo cbbc cbcc cbcr cbir cbko cbkr cbvb cbvr ccbc cccb cccc ccci cccv ccic ccii ccir cciv ccob ccoc ccrc ccri ccvi ccvo cibc cibi cibo cicc cici cico cicr ciii ciko cikr ciob cior cirb circ ciri cirk ciro cirr civc civo ckbc ckbi ckck ckco ckcv ckob ckoc ckoi ckoo ckor ckrc ckvo cobb cobi cobo cock coco coir cok- coko coob cook cor- corb corc cori cork coro corr covo crbc crcc crcr crib cric crik crkc crob croc crok croo cror cvcc cvii cvrr ibrc ibri ibro icbc iccb iccc icci icco iccr icoc icor icrc icrr iiii iiio iioi iioo iirc ikki ikko ikoo ikri iobi ioci ioii ioio ioko iooi iooo iori ircc iri- iric irio irki irob iroc irov irrc irri ivbv ivic ivor k-ci kbbb kbbc kbbi kbbk kbbo kbbr kbcb kbci kbck kbco kbcr kbib kbic kbik kbio kbkb kbkk kbko kbkr kbkv kbob kboc kboi kbok kboo kbov kbrb kbrc kbri kbrk kbro kbrv kbvb kbvc kbvo kbvr kcbc kcbi kcbk kcbr kccb kccc kcci kcck kccr kccv kcic kcii kcir kciv kckc kckk kcko kckr kckv kcob kcor kcrc kcri kcro kcrr kcrv kcvi kcvk kcvo kcvr kcvv kibb kibc kibi kibo kibr kicb kicc kick kicr kiic kiii kiik kikc kiki kikk kiko kikr kioc kioi kiok kioo kirb kirc kiri kirk kiro kirr kirv kivi kkbb kkbi kkbo kkbr kkcb kkci kkck kkco kkcr kkic kkik kkkk kkob kkoo kkor kkov kkrb kkrc kkrk kkro kkrr kkrv kkvr kkvv kobb kobc kobi kobk kobo kobr kocb koci kock koii koir koiv kokb kokc koki kokk koko kokr koob kooc kooi kook kooo koor koov korb korc kori kork koro korr korv kovc kovi kovk kovo kovr krbb krbi krbk krbr krcb krcc krci krco krib krik krio kriv krkc krki krkk krko krkr krkv krob kroc kroi krok kroo kror krov krrb krrc krri krrk krro krrr krvb krvc krvi krvk krvo krvr krvv kvbc kvbr kvcb kvcc kvci kvck kvco kvcr kvcv kvic kvik kvir kviv kvob kvoc kvoi kvok kvoo kvor kvov kvrc kvri kvro kvrr kvrv kvvr kvvv obbo obkb oboi obok obor obri obro obvi ocbc occc occi ocro ocrr oici oick oiii oiko okic okir okko okok okor okro oobi oocr oooo orbb orbi orbo orci orco ori- oric orio orko oro- orok oror orri orro orvr ovi- ovo- ovoo rbbb rbbr rcbc rcbo rccb rccc rcic rcvr rib- ribo ricc rick rico riki rikk riri rivo rob- robb robi robo rocc rock roco roik roio roir roki rokk roko rokr roob rooi rook roor rorc rori rork roro rovi rovo rrrr rv-c rvik vbcc vcbi vcci vic- vici vick vico viii viik viki viko virb virc viri virk viro virr vivi vivo vkor voic voio voir vooc voor vor- vori voro vovk vrci vrio vroc vvob vvvv

b-r-k bbook bcock bibbo bibic bibio bibri bikok bioci bioco bioko birck biroc bivio bo-bo bobbi bobik bobko boboc bobok bobov bobr bobri bocci bocki bocor boiro bokko bokok bokor bokov boock booco booki booko borbo borci borck boric borik borio borko boro- borok boroo borov borro borvo bovi- bovio brcko brick brico brivo brkic brobo brock brook brrrr c-cor cbvir ccccc cccii cccvi cciii ccvii cibir cicov cikov ciovo circk circo ciric cirio cirr- cirri cirro civic ckick co-bo co-co cocc- cocci cocco cocio cocir coiro cokk- cooki corbi corbo corio coro- coroi corri corvo covic cribb cribo crick crio- croci crock croco crook cviii ibibo ibook ibrik icbrr icici iiiii ikobo ikoro ioooi ioooo iorio ircii irico iriki irobo irock iroko irori ivivc ivkov ivvvo k-rob kibbi kibbo kibi- kibor kiiki kikki kikko kikoi kioko kirck kirki kirov kirvi kivik ko-ko kobic kobri kocic kocov koiri