-er bbb bbc bbe bbk bbo bbr bcb bcc bce bck bco bcr bcz be- beb bec bee bek beo ber bez bkb bkc bke bkk bko bkr bob boc boe bok boo bor boz brb bre brk bro brr brz bze bzo bzr bzz c-- cbb cbc cbe cbk cbo cbr cbz ccb ccc cce cck cco ccr ccz ce- ceb cec cee cek ceo cer cez ckb ckc cko co- cob coc coe cok coo cor coz crb crc cre crk cro crr crz cz- czc cze czk czo ebb ebc ebe ebk ebo ebr ec- ecb ecc ece eck eco ecr eeb eec eee eek eeo eer ekb ekc eke eko ekr eo- eob eoc eoe eok eoo eor erb erc ere erk ero err erz eze ezo ezr ezz k-z kbb kbc kbe kbk kbo kbr kbz kcb kcc kce kck kcr ke- keb kec kee kek keo ker kez kkb kkc kke kkk kkr kob koc koe kok koo kor koz krc krk kro krr kzo ob- obb obc obe obk obo obr oc- ocb occ ock oco ocr ocz oeb oec oee oeo oer okb okc oke okk oko okr oo- oob ooc ook ooo oor or- orb orc ore ork oro orr orz oze ozo ozz rbb rbc rbe rbk rbo rbr rcb rcc rce rco rcr re- reb rec ree rek reo rer rez rkb rkc rke rkk rko rkz rob roc roe rok roo ror roz rrb rrc rrk rrr rzb rze rzo zbb zbc zbr zce zco zeb zec zee zek zeo zer zez zo- zob zoc zoe zok zoo zor zro zzr zzz

bbbb bbeb bbrc bcbc bccc bcec bcer bcor bcoz bebb bebe bebo beck beeb beek beer beke beko beo- beok beor berc bere berk bero berr beze bobb bobe bobo boce bock boco boec boee boeo boer boke boko boob booc booe book boor booz bor- bore bork boro borr borz bozo brcb brce breb brec bree brek breo brer brez brkb brob broc broe brok broo bror broz brrr bzer bzoe bzrk bzzz c-bo cbbc cbcc cbce cbcr cbec cbee cber cbko cbkr cbre ccbc cccb cccc ccee ccob ccoc ccrc ccre cec- cece ceco ceeb ceec ceke ceor cer- cerc cere cero ceze ckbc ckbe ckck ckco cker ckob ckoc ckoo ckor ckrc cobb cobe cobo coce cock coco cok- coke coko coob cook cor- corb corc core cork coro corr coze cozz crbc crcc crce crcr crcz cre- creb crec cree creo crkc crob croc croe crok croo cror croz ebbc ebbo ebbr ebcc eber eboe eboo ebor ebro ecbc ecbe eccb eccc ecce ecco ecko eco- ecrc ecrr eeee eeke eeoc eerc eero eeze ekco ekeb ekek eker eore erbb erbe ercc erce ereb erec erer erez erke erob eroc eroe eroo errc erre erro ezek ezer ezzo kbbb kbbc kbbe kbbk kbbo kbbr kbbz kbcb kbce kbck kbco kbcr kbcz kbeb kbec kbee kbek kbeo kber kbez kbkb kbkk kbko kbkr kbkz kbob kboc kboe kbok kboo kboz kbrb kbrc kbre kbrk kbro kbrz kbzc kbze kbzo kbzz kcbc kcbk kcbr kccb kccc kcck kccr kceb kcec kcee kceo kcez kckc kckk kcko kckr kckz kcob kcoe kcor kcoz kcrc kcro kcrr kcrz kcze kczo kczz kebb kebc kebe kebr keck keco kecr keek keer kekb kekc keke keko keok ker- kerb kerc kere kerk kero kerr kerz kezb keze kezr kezz kkbb kkbe kkbo kkbr kkbz kkcb kkck kkco kkcr kkez kkkk kkob kkoo kkor kkoz kkrb kkrc kkre kkrk kkro kkrr kkrz kkzz kobb kobc kobe kobk kobo kobr kocb kock kokb kokc koke kokk koko kokr kokz koob kooc kook kooo koor kooz korb korc kore kork koro korr kozb koze kozk kozo kozr krbb krbe krbk krbr krbz krcb krcc krce krco kreb krec kree krek kreo krez krkc krke krkk krko krkr krkz krob kroc kroe krok kroo kror kroz krrb krrc krre krrk krro krrr krrz krze krzk krzr krzz kzbb kzbe kzbk kzbr kzbz kzcr kzee kzer kzke kzkr kzkz kzoo kzor kzoz kzrb kzrc kzrk kzro kzrr kzrz kzzb kzzk kzzo kzzr kzzz o-eo obbo obec ober obkb oboe obok obor obre obro ocbc occc oce ocee ocke ocre ocro ocrr oec- oecc oeec oere oker okko okok okor okre okro oobe oocr ooer oooo oore ooze orbb orbe orbo orce orco ore- oreb orec orek oreo orer orke orko oro- oroe orok oror oroz orro orzk orzo ozee ozek ozer rbbb rbbr rcbc rcbo rccb rccc rebb rebe rebk rebo recc rece reck recr recz reeb reek reke reko rere rero reze rob- robb robe robo rocc roce rock roco roer roke rokk roko rokr roob rook roor rooz rorc rore rork roro roze rozz rrrr z-ro zbek zber zebe zeck zeek zeke zeko zekr zerk zero zeze zobo zoco zoke zoo- zook zorb zorc zore zork zoro zozo zrce zrze zzzz

b-r-k bbbee bbook bcock be-er be-ro bebek beber becco becke beebe beeke beez beker bekke bekko bekok berbe berck berec berek berk- berke berko berob beroe berok beror berre berze berzo bezer bo-bo bobek bobko boboc bobok bobr bobre bocce bocke bocor boece boeck boeke boero bokeo boker bokko bokok bokor booce boock booco booer booke booko bookz boore booze borbo borce borck borcz borec boree borek borer borko boro- borok boroo borre borro bozer bozok bozoo brcko brece breck breek breer breke breo- breoc brere breze brobo broce brock broek broer broke brook broze brrrr c-cor ccccc cebec ceber ceco- ceere ceoce ceoor cerc- cerce cerco cerec cerer cerke cero- ceroc cerre cerro co-bo co-co cobbe cobre cocc- cocce cocco coceo cocke coker cokk- cooee cooer cooke coore cooze corbe corbo corce core- coree corer corke coro- corre corze corzo cozzo crebe crece creek creer creke creo- croce crock croco croke crooe crook crore croze ebber ebeko ebook ecker eecke eeeee ekeko ekker eorre erbbe erber erere erkec erkko erkoc eroor erore error ezbob k-rob kebbe kebek keber kebob