-er bbb bbc bbe bbk bbm bbo bbr bcb bcc bce bck bcm bco bcr be- beb bec bee bek bem beo ber bkb bkc bke bkk bkm bko bkr bmb bmc bme bmk bmm bmo bmr bob boc boe bok bom boo bor brb bre brk brm bro brr c-- cbb cbc cbe cbk cbm cbo cbr ccb ccc cce cck ccm cco ccr ce- ceb cec cee cek cem ceo cer ckb ckc ckm cko cmb cmc cme cmk cmm cmo cmr co- cob coc coe cok com coo cor crb crc cre crk crm cro crr ebb ebc ebe ebk ebm ebo ebr ec- ecb ecc ece eck ecm eco ecr eeb eec eee eek eem eeo eer ekb ekc eke eko ekr em- emb emc eme emk emm emo emr eo- eob eoc eoe eok eom eoo eor erb erc ere erk erm ero err kbb kbc kbe kbk kbm kbo kbr kcb kcc kce kck kcm kcr ke- keb kec kee kek kem keo ker kkb kkc kke kkk kkm kkr kmb kmc kme kmk kmm kmo kob koc koe kok kom koo kor krc krk kro krr m-o m-r mbb mbc mbe mbk mbm mbo mbr mc- mcb mcc mce mck mcm mco mcr meb mec mee mek mem meo mer mkb mkc mke mkk mkm mko mkr mmb mmc mme mmk mmm mmo mmr mob moc moe mok mom moo mor mrb mrc mre mrk mrm mro mrr ob- obb obc obe obk obm obo obr oc- ocb occ ock ocm oco ocr oeb oec oee oem oeo oer okb okc oke okk oko okr om- omb omc ome omm omo omr oo- oob ooc ook oom ooo oor or- orb orc ore ork orm oro orr rbb rbc rbe rbk rbm rbo rbr rcb rcc rce rcm rco rcr re- reb rec ree rek rem reo rer rkb rkc rke rkk rkm rko rmb rmc rme rmm rmo rmr rob roc roe rok rom roo ror rrb rrc rrk rrm rrr

bbbb bbcm bbeb bbrc bcbc bccc bccm bcec bcer bcor bebb bebe bebo beck beeb beek beem beer beke beko beme beo- beok beor berc bere berk berm bero berr bmce bmoc bobb bobe bobo boce bock bocm boco boec boee boeo boer boke boko bomb bome boob booc booe book boom boor bor- bore bork borm boro borr brcb brce breb brec bree brek brem breo brer brkb brmc brob broc broe brok brom broo bror brrm brrr c-bo cbbc cbcc cbce cbcm cbcr cbec cbee cber cbkm cbko cbkr cbme cbre cbrm ccbc cccb cccc cccm ccee cckm ccmb ccmc ccmm ccob ccoc ccom ccrc ccre cec- cece cecm ceco ceeb ceec ceem ceke cemb ceme cemm cemr ceor cer- cerc cere cero ckbc ckbe ckck ckcm ckco ckem cker ckmo ckob ckoc ckom ckoo ckor ckrc ckrm cmbc cmcc cmec cmmb cmmc cmoc cmrr cobb cobe cobo coce cock coco cok- coke coko com- comb comc come comm como comr coob cook coom cor- corb corc core cork corm coro corr crbc crcc crce crcr cre- creb crec cree crem creo crkc crmb crmo crob croc croe crok crom croo cror ebbc ebbo ebbr ebcc eber eboe eboo ebor ebro ecbc ecbe eccb eccc ecce eccm ecco ecem ecko eco- ecrc ecrm ecrr eeee eeke eemo eeoc eerc eero ekco ekeb ekek eker embe embo embr emcc emco emek emer emme emor emre eore erbb erbe ercc erce ereb erec erem erer erke ermc erme ermo erob eroc eroe eroo errc erre erro kbbb kbbc kbbe kbbk kbbm kbbo kbbr kbcb kbce kbck kbco kbcr kbeb kbec kbee kbek kbeo kber kbkb kbkk kbko kbkr kbmb kbmc kbme kbmo kbmr kbob kboc kboe kbok kboo kbrb kbrc kbre kbrk kbro kcbc kcbk kcbr kccb kccc kcck kccr kceb kcec kcee kceo kckc kckk kckm kcko kckr kcmb kcmc kcme kcmk kcmm kcmo kcmr kcob kcoe kcom kcor kcrc kcro kcrr kebb kebc kebe kebr keck keco kecr keek keem keer kekb kekc keke keko kemb kemc keme kemm kemo kemr keok keom ker- kerb kerc kere kerk kerm kero kerr kkbb kkbe kkbo kkbr kkcb kkck kkcm kkco kkcr kkkk kkmc kkmk kkmo kkmr kkob kkoo kkor kkrb kkrc kkre kkrk kkro kkrr kmbc kmbr kmcb kmcc kmce kmcm kmco kmcr kmem kmeo kmer kmke kmkk kmko kmme kmmk kmmm kmmo kmmr kmob kmoc kmoe kmok kmom kmor kmrb kmrc kmro kmrr kobb kobc kobe kobk kobo kobr kocb kock kocm kokb kokc koke kokk koko kokr komb komc kome komo komr koob kooc kook kooo koor korb korc kore kork koro korr krbb krbe krbk krbm krbr krcb krcc krce krcm krco kreb krec kree krek krem kreo krkc krke krkk krko krkr krmb krmc krme krmo krmr krob kroc kroe krok krom kroo kror krrb krrc krre krrk krrm krro krrr mcbc mccc mckk mcmc mcrc mebe mebo mec- mecc mece meck meco mecr meek meem meer meke meko memc meme memo memr meoc meok meor mer- merb merc mere merk merm mero mker mmcc mmcm mmmc mmmm mmor mmrc mobb mobe mobo mock moco moke moko mome momo moob mooc mooe mook moor morb more mork moro mr-c mrbb mrbm mrcb mrcc mrce mreb mree mrkr mrmc mrrc o-eo obbo obec ober obkb oboe obok obor obre obro ocbc occc oce ocee ocke ocom ocre ocro ocrr oec- oecc oeec oeme oere oerm oker okko okmo okok okom okor okre okro ombe ombo omee omeo omer omo- omoe omoo omor omre omro oobe oocr ooer oome oooo oore orbb orbe orbo orce orco ore- oreb orec orek orem oreo orer orke orko orme ormo oro- oroe orok orom oror orro rbbb rbbr rbmk rcbc rcbo rccb rccc rebb rebe rebk rebo recc rece reck recm recr reeb reek reem reke reko reme remo rere rero rob- robb robe robo rocc roce rock roco roer roke rokk roko rokr romb rome romk romm romo roob rook