bbb bbc bbd bbf bbk bbo bbr bcb bcc bcd bcf bck bco bcr bdb bdc bdd bdf bdk bdo bdr bfb bfc bfd bff bfo bfr bkb bkc bkf bkk bko bkr bob boc bod bof bok boo bor brb brd brf brk bro brr c-- cbb cbc cbd cbf cbk cbo cbr ccb ccc ccd ccf cck cco ccr cdb cdc cdd cdf cdk cdo cdr cfb cfc cfd cff cfk cfo cfr ckb ckc ckd cko co- cob coc cod cof cok coo cor crb crc crd crf crk cro crr dbb dbc dbd dbf dbk dbo dbr dcb dcc dcd dcf dck dco dcr ddb ddc ddd ddf ddk ddo ddr dfb dfc dfd dff dfk dfo dfr dkb dkc dkk dko dkr dob doc dod dof dok doo dor drb drc drd drk dro drr fbb fbc fbd fbf fbk fbo fbr fcb fcc fcd fcf fck fco fcr fdb fdc fdd fdf fdk fdo fdr ffc ffd fff ffk ffo ffr fkb fkc fkf fkk fob foc fof fok foo for frb frc frd frf frk fro frr kbb kbc kbd kbf kbk kbo kbr kcb kcc kcd kck kcr kdb kdc kdf kdk kdo kdr kfc kfd kff kfo kkb kkc kkk kkr kob koc kod kof kok koo kor krc krd krf krk kro krr ob- obb obc obd obf obk obo obr oc- ocb occ ocd ocf ock oco ocr odb odc odd odf odo odr of- ofb ofc ofd off ofo ofr okb okc okd okk oko okr oo- oob ooc ood oof ook ooo oor or- orb orc ord orf ork oro orr rbb rbc rbd rbf rbk rbo rbr rcb rcc rcd rcf rco rcr rdb rdc rdd rdf rdo rdr rfb rfc rfd rff rfk rfo rfr rkb rkc rkf rkk rko rob roc rod rof rok roo ror rrb rrc rrd rrf rrk rrr

bbbb bbdd bbdo bbfc bbrc bcbc bccc bcfc bcof bcor bd-r bdbc bddc bobb bobo bock boco bodb bodo bofd boff boko boob booc bood boof book boor bor- bord borf bork boro borr brcb brdo brfc brkb brob broc brod brok broo bror brrr c-bo c-cd cbbc cbcc cbcr cbdb cbdc cbdo cbfb cbfc cbko cbkr cbrd ccbc cccb cccc cccf ccdc ccdf ccdr ccfc ccfd ccff ccob ccoc ccod ccrc ccrf cd-r cdbf cddb cddr cfbc cfbr cfcb cfcf cfco cffb cffr cfor cfrb ckbc ckck ckco ckdo ckfr ckob ckoc ckoo ckor ckrc ckrd cobb cobo cock coco codd cofc coff cok- coko coob cood coof cook cor- corb corc cord corf cork coro corr crbc crcc crcr crdc crfc crkc crob croc crod crok croo cror d-bo dbcc dbfc dbfo dcbc dccb dccc dcdb dcfc dcrk dddd ddoc ddrc dfcc dfco dfrf dkdc dobb dock doco dod- dodd dodo doff doko doob dood doof dook door dorc dord dorf dork doro dorr drbc drfc drob drod drof f--k fccf fdoc ffcc ffff ffrr fock foco fofo food foof fook for- forb ford fork foro forr frbc frcc frfc frob kbbb kbbc kbbd kbbf kbbk kbbo kbbr kbcb kbck kbco kbcr kbdb kbdf kbdo kbdr kbfb kbfc kbff kbfk kbfo kbfr kbkb kbkf kbkk kbko kbkr kbob kboc kbod kbok kboo kbrb kbrc kbrd kbrf kbrk kbro kcbc kcbd kcbf kcbk kcbr kccb kccc kccd kcck kccr kcdc kcdd kcdr kcfb kcfc kcfd kcfo kckc kckf kckk kcko kckr kcob kcof kcor kcrc kcro kcrr kdbb kdbr kdcc kdcd kdco kdcr kddb kddc kddd kddf kddk kddr kdfc kdfo kdfr kdkb kdkd kdkk kdko kdkr kdoc kdok kdrb kdrf kdro kfbc kfbk kfcd kfcf kfco kfcr kffb kfff kffk kfkb kfok kfoo kfor kfrc kfrd kfro kfrr kkbb kkbd kkbo kkbr kkcb kkcd kkck kkco kkcr kkdc kkdd kkdo kkfr kkkk kkob kkoo kkor kkrb kkrc kkrf kkrk kkro kkrr kobb kobc kobk kobo kobr kocb kocd kocf kock kodk kodo kofc koff kofk kofo kokb kokc kokf kokk koko kokr koob kooc kook kooo koor korb korc kord korf kork koro korr krbb krbd krbk krbr krcb krcc krcd krco krdc krdd krdo krdr krfc krfd krff krfo krkc krkd krkk krko krkr krob kroc krod krof krok kroo kror krrb krrc krrf krrk krro krrr obbo obkb obok obor obro ocbc occc ocro ocrr odbo oddd odoo odor ofcr ofdr off- offc offo offr ofor okko okok okor okro oocr ooff oooo oord orbb orbo orco ordo orff orko oro- orof orok oror orro rbbb rbbr rcbc rcbo rccb rccc rcdc rcfc rcrd rdoc rffc rkkf rob- robb robo rocc rock roco rodd rodo rofc roff rofo rokk roko rokr roob rood roof rook roor rorc rork roro rrfc rrrr

b-r-k bbook bckdk bcock bdoor bo-bo bobko boboc bobok bobr bocor bodd- bodoc bodor boffo bokko bokod bokok bokor boock booco booko boord borbo borck bordo borko boro- borod borok boroo borro brcko brobo brock brodd brodo brood brook brrrr c-cor ccccc co-bo co-co cocc- cocco codco codo cokk- coord corbo corfo coro- corod crock croco crodo crood crook d-rod d-rok ddddd do-do dobok dobro dodoo dodro dofor dokdo doodo dorff drbob drobo drock droff drood droof drook fodor foodb foord ford- fordo forro frock frodo frood k-b-d k-rob ko-ko kodok kokko kokor koord korbo korck korff koror korro krock krodo o-r-b obock obodo oboro obrok ockro ocr-b offof okobo okoc okoro ooooo ordoc ordro orfor orobo oroco orodo r-co- ro-ro robbo robo- robor rocco rocko rocor rodbo rodoc rodok rodor rofor rokkk

bbbbbb bobfoc bobrok boccob bocock bodock bodoco bokoro booboo bookof borbor boroko bororo brocco brocor brokkr broock cobbob cocco- cococo coocoo coodoo cookoo crocco d-book dobroc docock dododo dok-do dorbod dorobo dorofk dorood dororo foboff foofoo forbod frbroo k-rock kobodo koboko kodkod kokoro koodoo kookoo korkor kororo ofdoor offord ookroo oooooo oordoo orford orrock rockof rococo rokkor

bbbbbbb bodokro bok-bok boo-boo boobook boocock bookdoc brokoff codford cokodok cookoff dob-dob dobrodo docbook dodford doo-doo foo-foo kfdf-cd kobroor kokocko kooddoo kor-kor kordorf kork-cd korkoro odorkor off-off