b-u bbb bbk bbo bbr bbu bkb bkk bko bkr bob bok boo bor bou brb brk bro brr bru bub buk buo bur buu kbb kbk kbo kbr kbu kkb kkk kkr kku kob kok koo kor kou krk kro krr kru kub kuk kur kuu ob- obb obk obo obr obu okb okk oko okr oku oo- oob ook ooo oor or- orb ork oro orr oru ou- ouk ouo our rbb rbk rbo rbr rbu rkb rkk rko rku rob rok roo ror rou rrb rrk rrr rru rub ruk ruo rur ruu ubb ubk ubo ubr ubu ukb ukk ukr uku uob uok uoo uor ur- urb urk uro urr uru uur uuu

bbbb bobb bobo bobu boko boku boob book boor bor- bork boro borr boru bouk bour brkb brob brok broo bror brou brrr bubb bubo bubu bukk buko buku bur- burb burk buro burr buru kbbb kbbk kbbo kbbr kbbu kbkb kbkk kbko kbkr kbob kbok kboo kbrb kbrk kbro kbru kbub kbuk kbur kbuu kkbb kkbo kkbr kkkk kkob kkoo kkor kkrb kkrk kkro kkrr kkuu kobb kobk kobo kobr kobu kokb kokk koko kokr koku koob kook kooo koor koou korb kork koro korr koru koub kour kouu krbb krbk krbr krkk krko krkr krku krob krok kroo kror krrb krrk krro krrr kruk krur kubb kubo kubr kubu kukk kuku kuok kuoo kurb kurk kuro kurr kuru kuub kuuk kuur kuuu obbo obkb obok obor obro okko okok okor okro okur ooku oooo orbb orbo orbu orko oro- orok oror orro orub our- ouro ouu- rbbb rbbr rob- robb robo robu rokk roko rokr roku roob rook roor rork roro roru roub rouk rrrr rubb rubu rukk ruku ruok ruro ruru ubbo ukko ukok ukur uor- uro- urok uroo uruk urur uuuu

b-r-k bbook bo-bo bobko bobok bobr bokko bokok bokor booko booru borbo borko borku boro- borok boroo borou borro bouko brobo brook brouk brrrr bukk- bukor buroo burro burru buruk k-rob ko-ko kobru kobuk kokko kokor kokou kokur kooru korbo korku koror korro koruk kubok kukko kukok kukur kurbu kurku kuruk o-r-b oboro obrok okkur okobo okoro okubo okuku okuru ooooo orobo oruku oruro ouoro ro-ro robbo robo- robor robur rokkk rorbu rouko rubor ubobo ukobu uroob urour urubu uuork uuuuu

bbbbbb bobrok bokoro booboo borbor borkou boroko bororo boubou boukou bourou brokkr brubru bububu bukkur bukuru burbur buruku koboko kokoku kokoro kokubo kookoo korkor kororo korubo koruru koubou koukou kouoro kourou kuroko kururu ookroo oooooo orrour rokkor rokuko rokuro rubro-

bbbbbbb bok-bok boo-boo boobook bourrou brokour kobroor kokorou kor-kor korkoro oroboro rubbour ububboo

bbbbbbbb bo-bo-bo broubrou buruburu kokborok kukukuku kukuruku kuruburu kurukuru rokkurro ubbubboo

borborbor koukourou

kouroukoro kukkurukuu

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