-hou -ous bbbb bbbs bbhs bblb bbls bhhs bhot bhut bhuu blbt blhs blls blob bloo blot blou blss blst blts blub blus blut bobb bobo bobs bobu bohl boho bohs boht bohu boll bolo bols bolt bolu boob booh bool boos boot bosh boso boss bost bosu botb both boto bots bott bouh boul bous bout bshs bsos bsts bths btob btss bttb btus bubb bubo bubs bubu buhl buho buhs bulb bull buls bult bulu buol bush buss bust busu but- buto buts butt buus hbbs hbhs hbos hbss hbtl hbtu hhhh hhhs hhus hlhs hlss hlul hobo hobs hohl hoho hol- holb holh holl holo hols holt holu hool hoos hoot hosh hoss host hotb hoth hotl hoto hots hott hotu hout hshs hsls hsob hsts hths htoh htol hubb hubl hubo hubs huhs huhu hull huls hult hulu huos huot hush huso huss hust huth huto huts hutt hutu huub huus lbhs lbos lhbs lhhh lhhs lhss llbs llhs llll lloo lob- lobb lobh lobo lobs loho lohs lohu loll lolo lols loob lool loos loot losh loso loss lost loth lotl loto lots lott louh loul lous lout louu lsbu lshs lsoh lsso lsts ltbl lths lubs luhu lull lulu luoh lush luso luss lust luth luts obbo obhs obls oblu obol obos obot obss obst obts obuh obus ohho ohhs ohob ohoh ohos ohso ohss ohto ohtu ohus olbo ollo olos olot olsh olst oltu ooho oohs oolo oooh oooo ooos oost ootb oots oous osho oshs oshu oslo osoo osos ossb osso ossu osts osul otbs otho oths oto- otoh otoo otos otso otsu otto otts ottu otus oubs ouls oulu oust out- outb outh outo outs ouu- s-os sbbs sbhs sbot sbst sbus shbs shbt shhh shhs shl- shls shoo shos shot shou shts shub shul shus shut shuu slhs slob sloh sloo slos slot slst slsu slts slub slut sobo sobs sobt sobu sohh sohl soho sohs sohu solh soll solo sols solt sool soos soot sosh soso soss sost soth sotl soto sots sotu soul sous sout sshl sshs sslt ssot sssb sssh ssss sstb ssth sstl ssts stbs sths stlh stlo stlt stob stol stoo stos stot stou stss stub stul stus stut sub- subb subh subl subo subs suhb suhl suho sul- sulh sull sulo sult sulu suoh suos sus- suso suss sust susu suto sutu suus tbbs tbhs tbst thbs thoo thos thot thou thss thtb thts thul thus tlos tobo tobs tobt tobu toho tohu tol- toll tolo tolt tolu tooh tool toos toot tosb tosh toso toss tost tosu toth toto tots tott touh toul tous tout tshb tshs tsob tsol tsos tsou tsst tsts ttbb ttss tttt ttul tubb tubo tubs tubu tuhs tuht tuhu tull tulo tulu tuos tush tuss tust tutl tuto tuts tutt tutu tuuo ubbo ublo ubls ubos uhoh uhss uhuh ullo ulo- ulos ulto ults ultt ulul ulus usbl usbs usho ushs ushu uslu usos ussb usss usst ussu ustb usto usts usul usus utsl utto uttu uulu uuuu