-hou bbbb bblb bboy bbyo bhor bhot bhoy bhrt bhur bhut bhuu blbt blob bloo blot blou bloy blub blur blut bly- bobb bobo bobu boby bohl boho bohr boht bohu bohy boll bolo bolt bolu boly boob booh bool boor boot bor- borh boro borr bort boru bory botb both boto bott boty bouh boul bour bout bouy boyl boyo brob broh brol broo bror brot brou brrr bruh brut bry- bryo btob btor btrt btry bttb bubb bubo bubu buhl buho buhr buhy bulb bull bult bulu buol buoy bur- burb burh burl buro burr burt buru bury but- buto butt buty buyl buyo buyu bylt byob byol byrt byth byul hbtl hbtu hhhh hlly hlul hobo hoby hohl hoho hol- holb holh holl holo holt holu holy hool hoor hoot horl horo horr hort hory hotb hoth hotl hoto hotr hott hotu hour hout hoyt hrbl hrob hrtb hryb htoh htol httr hubb hubl hubo huby huhu hull hult hulu huly huor huot hurl huro hurr hurt huru hury huth huto hutt hutu huty huub huyr huyt hybo hyl- hyll hylo hylt hyly hyo- hyrt lblr lbrt lhhh lhor llll lloo llyr lob- lobb lobh lobo loby loho lohr lohu loll lolo loly loob lool loor loot loro lory loth lotl loto lotr lott louh loul lour lout louu lrrr lrry ltbl lthr lttr ltyr luby luhu lull lulu luoh lurt lury luth luyt lyht lyly lyo- lyot lyro lyth lyto lytt obbo obby oblu obol obor obot oboy obrh obro obuh ohho ohly ohob ohoh ohto ohtu ohyo olbo olby ollo olly olor olot olry oltu olur ooby ooho oolo oooh oooo oort oory ootb ooty orbb orbo orbu orby orlo orlu orly oro- oror orot oroy orro orry orth orto orub otho othr oto- otoh otoo otor otoy otro otry otto ottu otur otyr oulu our- ouro ourt out- outb outh outo outy ouu- ouyr oyly oyou rbbb rbbr rboh rhob rhoh rhyl rob- robb robo robt robu roby rohl rohr rohu rohy roll rolo rolt roly roob rool roor root roro rort roru rory roth rotl roto rotr rott roty roub rouh roul rout rouy royl royt rrrr rtlt rubb rubu ruby ruhh ruhl ruhr rull rulo ruly ruoy ruro ruru ruth rutl ruto rutt rutu ruty ruyl ryhb ryob ryoh ryot ryth rytt ryyt tbrb thoo thor thot thou thro thru thtb thtr thul thur thuy thyh to-y tobo tobt tobu toby toho tohu tol- toll tolo tolt tolu toly tooh tool toor toot toro torr tort toru tory toth toto totr tott toty touh toul tour tout toyb toyl toyo toyt troo trot trou troy trtr trub trut truu try- tryb tryo ttbb ttoy tttt ttul ttyl tubb tubo tubr tubu tuht tuhu tull tulo tulu tuly tuor turb turo turr turt turu tury tutl tuto tutt tutu tuty tuuo tuyl tybo tyht tyl- tyll tylo tyr- tyrl tyro tyrr tyto tytt tyty ubbo ublo ubly uhoh uhry uhuh ullo ullr ully ulo- ulto ultt ulul uor- urho uro- urol uroo urrh urry urth urur urut utby utor utoy utto uttu uulu uuuu ybor ybry yhou yobo yoho yoll yolo yoly yool yoot yoro yort yory yott youb youl your yout yoyo yrho yrly ytht yubu yulo yulu yurt yury yuto yutu yuty yuyu yyyy