b-u bbb bbg bbk bbo bbr bbu bgb bgg bgk bgo bgr bgu bkb bkg bkk bko bkr bob bog bok boo bor bou brb brg brk bro brr bru bub bug buk buo bur buu gbg gbk gbo gbr gbu ggb ggg ggo ggr ggu gkb gko gob gog gok goo gor gou grb grg grk gro grr gru gu- gub gug guk guo gur guu kbb kbk kbo kbr kbu kgb kgo kgu kkb kkk kkr kku kob kog kok koo kor kou krg krk kro krr kru kub kug kuk kur kuu ob- obb obg obk obo obr obu ogg ogo okb okg okk oko okr oku oo- oob oog ook ooo oor or- orb org ork oro orr oru ou- ouk ouo our rbb rbg rbk rbo rbr rbu rgb rgg rgk rgo rgr rkb rkg rkk rko rku rob rog rok roo ror rou rrb rrg rrk rrr rru rub rug ruk ruo rur ruu ubb ubg ubk ubo ubr ubu ugb ugg ugk ugo ugr ugu ukb ukk ukr uku uob uog uok uoo uor ur- urb urg urk uro urr uru uug uur uuu

bbbb bbrg bobb bobo bobu bogg bogo boko boku boob boog book boor bor- borg bork boro borr boru bouk bour brkb brob brog brok broo bror brou brrr brug bubb bubo bubu bugg bugo bukk buko buku bur- burb burg burk buro burr buru gbbo gggg gobo gogo goku goog gook goor gorb gorg goro gorr gou- goug gouk gour grbr grob grog grok groo gror grou grrr grub grug grur gubb gubu gugb gugg gugu gurb gurg gurk guro gurr guru kbbb kbbg kbbk kbbo kbbr kbbu kbgb kbgg kbgo kbgr kbkb kbkg kbkk kbko kbkr kbob kbok kboo kbrb kbrg kbrk kbro kbru kbub kbuk kbur kbuu kgbb kgbr kggg kggo kggr kgor kgou kgrb kgrg kgrk kgro kgrr kkbb kkbg kkbo kkbr kkgb kkgo kkgr kkkk kkob kkoo kkor kkrb kkrk kkro kkrr kkuu kobb kobk kobo kobr kobu kogb kogg kogo kogu kokb kokk koko kokr koku koob koog kook kooo koor koou korb korg kork koro korr koru koub kour kouu krbb krbg krbk krbr krkk krko krkr krku krob krog krok kroo kror krrb krrg krrk krro krrr krug kruk krur kubb kubo kubr kubu kugb kugo kugr kukk kuku kuok kuoo kurb kurk kuro kurr kuru kuub kuuk kuur kuuu obbo obkb obok obor obro ogb ogog ogou ogro okgo okko okok okor okro okur ooku oooo orbb orbo orbu orgo orko oro- orok oror orro orub our- ouro ouu- rbbb rbbr rob- robb robo robu rogg rogo rokk roko rokr roku roob roog rook roor rork roro roru roub rouk rrrr rubb rubu rugg rukk ruku ruok ruro ruru ubbo uggo ugro ugur uguu ukko ukok ukur uor- urgu uro- urok uroo uruk urur uuuu

b-r-k bbook bo-bo bobko bobok bobr bogor bogu bogur bokko bokok bokor booko booru borbo borgo borgu borko borku boro- borok boroo borou borro bouko bourg brobo brook brouk brrrr brugg bugok bugoo bukk- bukor burgk burgo burgu buroo burro burru buruk gboko go-go go-oo gobbo gogok gogro goobo gorgo grgur grogg grokk grook grrrr grubb gubbo gubru gukgo gurko guroo gurro gurur k-rob ko-ko kobru kobuk kogro kokko kokor kokou kokur koogu kooru korbo korgu korku koror korro koruk kubok kugur kukko kukok kukur kurbu kurgo kurku kuruk o-r-b oboro obrok ogogo ogugu okkur okobo okoro okrog okrug okubo okuku okuru ooooo orobo orrgo oruku oruro ouoro ro-ro robbo robo- robor robur rokkk rorbu rouko rubor ubobo ugro- ugrug ukobu ukuug uroob urour urubu uuork uuuuu

bbbbbb bobrok bogoro bokoro booboo borbor borkou borogo boroko bororo boubou bougou boukou bourou brokkr brubru bububu bugbug buk-gu bukkur bukuru burbur burgoo burgor buruku g-book gobbur gogoro googoo gooroo gorgor gourou grugru gubgub gurbru gurugu kobogo koboko kogoro kokoku kokoro kokubo kookoo korkor kororo korubo koruru koubou koukou kouoro kourou kurogo kuroko kururu obourg ookroo oooooo orrour robo-g rokkor rokuko rokuro roogoo rubro-

bbbbbbb bok-bok boo-boo boobook bourgou bourrou brokour goo-goo goooooo gru-gru guk-guk kobroor kokorou kor-kor korkoro kourgou ogogoro orgburo oroboro rubbour ububboo

bbbbbbbb bo-bo-bo bogogobo borbogou broubrou buruburu gogogogo groogroo kobukuro kokborok kukukuku kukuruku kuruburu kurukuru rokkurro ubbubboo

bogo-bogo borborbor bourbourg groo-groo koukourou

bobobougou kouroukoro kukkurukuu

bbbbbbbbbbbbbbb grrrrrrrrrrrrrr