bbbb bbng bbrg bgon bnor bnrr bobb bobo bogg bogo bokn boko bong bonk bonn bono boob boog book boon boor bor- borg bork born boro borr brkb brno brob brog brok bron broo bror brrr gbbo gbon gggg ggrn gnoo gnrr gobo gogo gon- gong gonk gonn gono goog gook goon goor gorb gorg gorn goro gorr grbr grob grog grok gron groo gror grrr kbbb kbbg kbbk kbbo kbbr kbgb kbgg kbgn kbgo kbgr kbkb kbkg kbkk kbko kbkr kbng kbnn kbno kbnr kbob kbok kbon kboo kbrb kbrg kbrk kbrn kbro kgbb kgbn kgbr kggg kggo kggr kgnb kgng kgno kgnr kgon kgor kgrb kgrg kgrk kgrn kgro kgrr kkbb kkbg kkbn kkbo kkbr kkgb kkgo kkgr kkkk kknb kknn kkno kkob kkon kkoo kkor kkrb kkrk kkrn kkro kkrr knbb knbn knbr kngn kngr knkk knnb knng knnk knnr knob knog knok knon knor knrb knrg knrk knro kobb kobk kobn kobo kobr kogb kogg kogn kogo kokb kokk kokn koko kokr kong konk kono koob koog kook koon kooo koor korb korg kork korn koro korr krbb krbg krbk krbr krgn krkk krkn krko krkr krnb krng krnk krnn krno krob krog krok kroo kror krrb krrg krrk krrn krro krrr nbbo ngon ngor nkgb nkok nkor nngn nnnn nobo nogg nogo noko non- nong nonn nono noo- noob nook noon nooo noor nor- norb norg nork norn noro norr nron obbo obkb obok obon obor obro ogb ogog ogon ogro okgo okko okno okok okon okor okro ongo onno onon onor oooo orbb orbo orgn orgo orko orno oro- orok oron oror orro rbbb rbbr rnbr rob- robb robo rogg rogo rokk roko rokr rong ronk rono roob roog rook roon roor rork roro rrrr