-hou -ous bbbb bbbs bbhs bhhs bhor bhot bhrt bhur bhut bhuu bobb bobo bobs bobu boho bohr bohs boht bohu boob booh boor boos boot bor- borh boro borr bors bort boru bosh boso boss bost bosu botb both boto bots bott bouh bour bous bout brhs brob broh broo bror bros brot brou brrr brrs brsb brsr brst bruh brus brut bshs bsos bsts bths btob btor btrt btss bttb btus bubb bubo bubs bubu buho buhr buhs bur- burb burh buro burr burs burt buru bush buss bust busu but- buto buts butt buus hbbs hbhs hbos hbrs hbss hbtu hhhh hhhs hhus hobo hobs hoho hoor hoos hoot horo horr hors hort hosh hoss host hotb hoth hoto hotr hots hott hotu hour hout hrhs hrob hros hrso hrtb hshs hsob hsts hsur hths htoh httr hubb hubo hubs huhs huhu huor huos huot huro hurr hurs hurt huru hush huso huss hust huth huto huts hutt hutu huub huus obbo obhs obor obos obot obrh obro obsr obss obst obts obuh obus ohho ohhs ohob ohoh ohos ohso ohss ohto ohtu ohus ooho oohs oooh oooo ooos oort oost ootb oots oous orbb orbo orbs orbu orhs oro- oror oros orot orro orrs orso orsu orth orto orts orub orus osho oshs oshu osoo osor osos osro ossb osso ossu ostr osts otbs otho othr oths oto- otoh otoo otor otos otro otrs otso otsu otto otts ottu otur otus oubs our- ouro ours ourt oust out- outb outh outo outs ouu- rbbb rbbr rbbs rbhs rboh rbss rbst rhhs rhob rhoh rhos rhus rob- robb robo robs robt robu rohr rohs rohu roob roor roos root roro rort roru rosh roso ross rost roth roto rotr rots rott roub rouh rous rout rrhs rrrr rshs rsos rsts rstu rths rtss rtts rubb rubs rubu ruhh ruhr ruhs ruro rurs ruru rush ruso russ rust rusu ruth ruto ruts rutt rutu s-os sbbs sbhs sbor sbot sbst sbus shbs shbt shhh shhs shoo shor shos shot shou shrs shts shub shur shus shut shuu sobo sobr sobs sobt sobu sohh soho sohs sohu soor soos soot sorb sorh soro sorr sors sort soru sosh soso soss sost soth soto sots sotu sour sous sout srhs sros srtr srub ssbr sshs ssot ssrs sssb sssh ssss sstb ssth ssts stbs sths stob stoo stor stos stot stou stro strs stru stss sttr stub stur stus stut sub- subb subh subo subs suhb suho suhr suoh suor suos sur- suro surr surs surt suru sus- suso suss sust susu suto sutu suus tbbs tbhs tbrb tbst thbs thoo thor thos thot thou thro thru thsr thss thtb thtr thts thur thus tobo tobs tobt tobu toho tohu tooh toor toos toot toro torr tors tort toru tosb tosh toso toss tost tosu toth toto totr tots tott touh tour tous tout trhs troo tros trot trou trst trtr trub trus trut truu tshb tshs tsob tsos tsou tssr tsst tsts ttbb ttss tttt tubb tubo tubr tubs tubu tuhs tuht tuhu tuor tuos turb turo turr turs turt turu tush tuss tust tuto tuts tutt tutu tuuo ubbo ubos uhoh uhrs uhss uhuh uor- urbs urho uro- uroo urrh urso urss ursu urth urts urur urus urut usbr usbs usho ushr ushs ushu usos ussb ussr usss usst ussu ustb usto usts usus utor utto uttu uuuu