-hou -ous bbbb bbbs bbhs bhhs bhor bhur bhuu bnhs bnor bnrr bnss bobb bobo bobs bobu bohn boho bohr bohs bohu bonn bono bons bonu boob booh boon boor boos bor- borh born boro borr bors boru bosh bosn boso boss bosu bouh boun bour bous brhs brno brns brob broh bron broo bror bros brou brrr brrs brsb brsr bruh brun brus bshs bsns bson bsos bubb bubo bubs bubu buho buhr buhs bunb bunn buno buns bunu buon bur- burb burh burn buro burr burs buru bush buss busu buus hbbs hbhs hbos hbrs hbss hhhh hhhs hhus hnhs hobo hobs hohn hoho hono hons honu hoon hoor hoos horn horo horr hors hosh hoss hour hrhs hrob hron hros hrso hrun hshs hsob hson hsur hubb hubo hubs huhn huhs huhu hunh huns huon huor huos hurn huro hurr hurs huru hush huso huss huub huus nbbo nbhs nhhs nhnn nhon nnhs nnnn nnos nnss nobo nobs nobu nohn noho nohs non- nonn nono nons nonu noo- noob noon nooo noor noos nor- norb norn noro norr nors nos- nosh noss nosu nouh noun nour nous nrhs nron nsbo nshs nsnr nsos nsou nssb nsso nssr nsss nsub nubs nunn nuno nuns nuon nurn nurr nurs nuru nush nuss nusu obbo obhs obon obor obos obrh obro obsn obsr obss obuh obus ohho ohhs ohno ohob ohoh ohos ohrn ohso ohss ohus onno onon onor onos onso onur onus ooho oohs oons oooh oooo ooos oous orbb orbo orbs orbu orhs orno orns oro- oron oror oros orro orrs orso orsu orub orus osho oshs oshu osno osnr osoo osor osos osro ossb osso ossu osun oubs oun- our- ourn ouro ours ouu- rbbb rbbr rbbs rbhs rboh rbss rhhs rhob rhoh rhon rhos rhun rhus rnbr rnsh rob- robb robo robs robu rohn rohr rohs rohu rono rons roob roon roor roos roro roru rosh roso ross roub rouh roun rous rrhs rrrr rrun rshs rsnn rsno rsnr rsos rubb rubs rubu ruhh ruhn ruhr ruhs runn runo runs ruro rurs ruru rush ruso russ rusu ruun s-os sbbs sbhs sbor sbus shbs shhh shhs shon shoo shor shos shou shrs shub shun shur shus shuu snhs snns snob snoo snor snos snrs snub snur snus sobo sobr sobs sobu sohh sohn soho sohs sohu son- sono sons sonu soon soor soos sorb sorh sorn soro sorr sors soru sosh soso soss soun sour sous srhs srnn srno sros srub ssbn ssbr sshs ssns ssrs sssb sssh ssss sub- subb subh subo subs suhb suho suhr sun- sunb sunn suno suns sunu suoh suor suos sur- surn suro surr surs suru sus- suso suss susu suus ubbo ubon ubos uhno uhoh uhrs uhss uhuh unno unns unon unos unro unrs uns- unso unus uor- urbs urho urns uro- uroo urrh urso urss ursu urun urur urus usbr usbs usho ushr ushs ushu usno usnr usnu usos ussb ussr usss ussu usun usus uuno uuuu