b-u bbb bbc bbd bbg bbo bbr bbu bcb bcc bcd bcg bco bcr bcu bdb bdc bdd bdg bdo bdr bdu bgb bgc bgd bgg bgo bgr bgu bob boc bod bog boo bor bou brb brd brg bro brr bru bub buc bud bug buo bur buu c-- cbb cbc cbd cbg cbo cbr cbu ccb ccc ccd ccg cco ccr ccu cdb cdc cdd cdg cdo cdr cdu cgb cgc cgd cgg cgo cgr cgu co- cob coc cod cog coo cor cou crb crc crd crg cro crr cru cub cuc cud cug cuo cur cuu dbb dbc dbd dbg dbo dbr dbu dcb dcc dcd dcg dco dcr dcu ddb ddc ddd ddg ddo ddr ddu dgc dgd dgg dgr dgu dob doc dod dog doo dor dou drb drc drd drg dro drr dru dub duc dud dug duo dur g-d gbc gbd gbg gbo gbr gbu gcb gcc gcd gcg gco gcr gcu gdb gdc gdd gdo gdr gdu ggb ggc ggd ggg ggo ggr ggu gob goc god gog goo gor gou grb grc grd grg gro grr gru gu- gub guc gud gug guo gur guu ob- obb obc obd obg obo obr obu oc- ocb occ ocd ocg oco ocr ocu odb odc odd odg odo odr odu ogc ogd ogg ogo oo- oob ooc ood oog ooo oor or- orb orc ord org oro orr oru ou- ouc oud ouo our rbb rbc rbd rbg rbo rbr rbu rcb rcc rcd rcg rco rcr rcu rdb rdc rdd rdg rdo rdr rdu rgb rgc rgd rgg rgo rgr rob roc rod rog roo ror rou rrb rrc rrd rrg rrr rru rub ruc rud rug ruo rur ruu ubb ubc ubg ubo ubr ubu ucb ucc ucd ucg uco ucr ucu udb udc udd udg udo udr udu ugb ugc ugg ugo ugr ugu uob uoc uod uog uoo uor ur- urb urc urd urg uro urr uru uuc uug uur uuu

bbbb bbdd bbdo bbrc bbrg bcbc bcbg bccc bcor bcru bcuc bd-r bdbc bddc bdog bobb bobo bobu boco bocu bodb bodo bodu bogd bogg bogo boob booc bood boog boor bor- bord borg boro borr boru boud bour brcb brdo brob broc brod brog broo bror brou brrr bruc brud brug bubb bubo bubu bucc buco bucu budb budd budg budo budu bugg bugo bur- burb burd burg buro burr buru c-bo c-cd cbbc cbcc cbcr cbcu cbdb cbdc cbdo cbgb cbrd ccbc cccb cccc cccu ccdc ccdr ccgc ccob ccoc ccod ccrc ccrg ccuc cd-r cddb cddr cgcc cgcg cgro cobb cobo cobu coco cocu codd cogo coob cood cor- corb corc cord corg coro corr coub coud cour crbc crbu crcc crcr crdc crob croc crod croo cror crub crud crug cub- cubb cucc curb curd curo curr d-bo dbcc dcbc dccb dccc dccu dcdb dcgo dddd ddoc ddrc ddub dobb dobu doco docu dod- dodd dodg dodo dog- dogg dogo dogu doob dood door dorc dord doro dorr doru doub douc doud doug dour drbc drob drod drog drou drub drug druu dub- dubb dubc dubu duco dudd dudo dudu dugu duo- durg duro duru duur gbbo gc-c gcbc gccc gcrg gddb gdor gdrc gggg gobo gocr godo gogo good goog goor gorb gord gorg goro gorr gou- goud goug gour grbr grcc grdc grob groc grod grog groo gror grou grrr grub grug grur gubb gubu gudo gudu gugb gugg gugu gurb gurd gurg guro gurr guru obbo obor obro ocbc occc ocro ocrr ocur odbo oddd odoo odor odou odur ogb ogdc ogod ogog ogou ogro oocr oooo oord orbb orbo orbu orco ordo ordu orgo oro- oror orro orub oucc oudc our- ouro ouu- rbbb rbbr rcbc rcbo rccb rccc rcdc rcgc rcrd rcrg rdoc rob- robb robo robu rocc roco rodd rodo rogg rogo roob rood roog roor rorc roro roru roub roud rrrr rubb rubu rudd rudo rugg rurc rurd ruro ruru ruud ubbo uboc ubod ubud ucbc ucdc ucdd ucrc udbc udgb udoo ugcc ugcg uggo ugod ugro ugur uguu uocc uor- urdu urgu uro- uroo urur uuoc uuuu

bdoor bo-bo boboc bobr bocor bodd- bodoc bodog bodor bogor bogu bogud bogur booco boord booru borbo bordo borgo borgu boro- borod boroo borou borro boudu bourd bourg brobo brodd brodo brood broud brrrr brud- brugg bucco bucur buddu budoc budur bugoo buord burcu burgo burgu buroo burro burru buruc burud c-cor ccccc co-bo co-co cocc- cocco cocur codco codo codru coord coorg corbo corbu coro- corod couco courb courd couru croco crodo crood croud crudo cruor cubo- cubub cuoco curro curug d-cru d-rod ddddd do-do dobro dodoo dodro dogbo doggo doodo dorog dorud douro drbob drcog drobo drog- drogo drood droog droug drugu dubbo dubuc ducor duddo dudou duduc duroc g-doc go-go go-oo gobbo gocco gocoo godco goddo godor gogro goobo goodg goodo goord gordo gorgo gorod gourd grgur grodd grogg grood groud grrrr grubb gubbo gubru guddu gudur guroo gurro gurur o-dog o-r-b obodo oboro obudu occur ocr-b oddur odour odudu oduro ogogo ogugu ooooo ordoc ordro orduc orobo oroco orodo orrgo oruro ouoro r-co- ro-ro robbo robo- robor robur rocco rocor rocou rodbo rodoc rodor roodu rorbu rubor u-dub u-god ubobo ugro- ugrug urdog uroob urour urubu urucu uuuuu

bbbbbb boccob bodoco bodrog bogodo bogoro booboo borbor borogo bororo boubou boudou bougou bourou brocco brocor brubru bububu bucco- buddug budugu bugbug burbur burdur burgoo burgor cobbob coburg cocco- cococo codrug coocoo coodoo corour coruco coruro courbu courr- crocco cruro- cucurb curdog curour curror cururo dobroc dododo dogood dorbod dorbug dorobo dorood dororo doudou dourou dubdub dugdug g-bbdg gobbur goddod godord gogoro good-o googoo gooroo gorgor goudou gourou grorud grugru gubgub guduru gurbru gurugu obourg occour oooooo oordoo ordoru orrour robo-g rococo roogoo roucou rubro- rudgur rudrur ruocco udburu

bbbbbbb bodrogu boo-boo bordour bourgou bourrou broudur burdour cobourg cooccur corrour cou-cou cur-dog do-good dob-dob dobrodo dododou dogdoor doo-doo dor-bug dorudgu dourdou dubourg goo-goo gooddog goodgod goooooo