-ous bbbb bbbs bbng bbrg bggs bgon bgun bnor bnrr bnss bobb bobo bobs bobu bogg bogo bogs bong bonn bono bons bonu boob boog boon boor boos bor- borg born boro borr bors boru bosn boso boss bosu boun bour bous brno brns brob brog bron broo bror bros brou brrr brrs brsb brsr brug brun brus bsgs bsns bson bsos bubb bubo bubs bubu bugg bugo bugs bunb bung bunn buno buns bunu buon bur- burb burg burn buro burr burs buru buss busu buus gbbo gbbs gbon gggg ggrn ggss gnoo gnrr gnus gobo gobs gogo gogs gon- gong gonn gono gons gonu goog goon goor goos gorb gorg gorn goro gorr gors goso goss gosu gou- goug goun gour gous grbr grob grog gron groo gror gros grou grrr grrs grss grub grug grun grur grus gson gsos gsur gubb gubs gubu gugb gugg gugu gung gunn guns guos gurb gurg gurn guro gurr gurs guru gusb guss guus nbbo ngns ngon ngor ngos ngou ngsn ngur nguu nngn nnnn nnos nnss nobo nobs nobu nogg nogo nogs non- nong nonn nono nons nonu noo- noob noon nooo noor noos nor- norb norg norn noro norr nors nos- noss nosu noun nour nous nron nsbo nsnr nsos nsou nssb nsso nssr nsss nsub nubs nugs nung nunn nuno nuns nuon nurn nurr nurs nuru nuss nusu obbo obon obor obos obro obsn obsr obss obus ogb ogog ogon ogou ogro ogun ogus ongo ongu onno onon onor onos onso onur onus oons oooo ooos oous orbb orbo orbs orbu orgn orgo orgs orno orns oro- oron oror oros orro orrs orso orsu orub orus osno osnr osoo osor osos osro ossb osso ossu osun oubs oun- oung our- ourn ouro ours ouu- rbbb rbbr rbbs rbss rnbr rngs rob- robb robo robs robu rogg rogo rong rono rons roob roog roon roor roos roro roru roso ross roub roun rous rrrr rrun rsgb rsnn rsno rsnr rsos rubb rubs rubu rugg rugs rung runn runo runs ruro rurs ruru ruso russ rusu ruun s-os sbbs sbor sbus sggg sggs sgro sgss snns snob snog snoo snor snos snrs snub snug snur snus sobo sobr sobs sobu sogn sogo sogs son- song sono sons sonu soog soon soor soos sorb sorg sorn soro sorr sors soru soso soss soun sour sous srgb srnn srno sros srub ssbn ssbr ssgs ssns ssrg ssrs sssb ssss sub- subb subg subo subs sug- sugg sugo sun- sunb sung sunn suno suns sunu suor suos sur- surg surn suro surr surs suru sus- suso suss susu suus ubbo ubon ubos uggo uggs ugos ugro ugur uguu ungo ungu unno unns unon unos unro unrs uns- unsg unso unus uor- urbs urgu urns uro- uroo urso urss ursu urun urur urus usbr usbs usgo usno usnr usnu usog usos ussb ussr usss ussu usun usus uuno uuuu