-hou bbbb bbdd bbdo bd-r bddh bdii bhir bhit bhoi bhor bhot bhrt bhur bhut bhuu bibb bibi bibo bidi bido bidr bidu bihi bihu bio- bioi biot biou birb bird biri biro birr birt biru bitd bith bito bitt bitu bobb bobi bobo bobu bodb bodh bodi bodo bodu bohd boho bohr boht bohu boi- boid boii boit boiu boob bood booh boor boot bor- bord borh bori boro borr bort boru botb botd both boti boto bott boud bouh bour bout brdo brdt brid brih brio brit brob brod broh broo bror brot brou brrr brud bruh brut btdt btob btor btrt bttb bubb bubi bubo bubu budb budd budi budo budu buhi buho buhr buid buir buit buiu bur- burb burd burh buri buro burr burt buru but- buti buto butt d-bo dbit dbtt dddd ddot ddub dhod dhor dhur dibb dibo didi dido didu dihu diii dior diot diou dird dirr dirt dith diti dito ditt dobb dobi dobu dod- dodd dodi dodo dohr doid doit doob dood door doot dord dori doro dorr dort doru dotd doth doti doto dott doub doud dour dout drib drih drit drob drod droh drot drou drub drui drut druu dthd dtor dtot dub- dubb dubh dubu dudd dudo dudu duhr duhu duid duir duit duo- duri duro durt duru duur duut h-ii hbio hbit hbtu hdod hdri hdtt hhhh hibi hibt hibu hidi hihi hiho hiht hiit hiiu hiob hird hiri hiro hirt hiru hiti hito hitt hobo hodh hodi hodr hoho hoid hoir hoit hood hoor hoot hord hori horo horr hort hotb hotd hoth hoti hoto hotr hott hotu houd hour hout hrib hrid hrit hrob hrod hrtb hrud htoh httr hubb hubi hubo hudd hudi hudo hudu huhi huhu huib huid huir huit huor huot hurd huri huro hurr hurt huru huth huti huto hutt hutu huub ibdo ibid ibot ibrd ibri ibro ibtb iddo idid idio idir idro idub iduo ihdr ihit ihob ihrd ihub ihud ihuo iiht iiii iiio iiit iioi iioo iitr iitt iobi iod- iodd iodo ioii ioio ioit iooi iooo iori ioto irdo iri- irid irio irob irod iroh irri irti itdo itoh itoi itoo itor itou itri itto itur iuiu obbo obdt obid obit oboi obor obot obrh obri obro obtd obuh odbo oddd oddi odio odir odiu odoh odoo odor odot odou odtu odur ohhi ohho ohid ohio ohob ohoh ohto ohtu oido oiii oirt oiti oobi oodi ooho ooid oooh oooo oord oort ootb orbb orbi orbo orbu ordo ordu ori- orid orio orit oro- oror orot orri orro orth orto orub otbd otho othr otit oto- otoh otoo otor otro otti otto ottu otur oudh ouii ouir ouit our- ouro ourt out- outb outh outi outo ouu- rbbb rbbr rboh rdio rhib rhio rhob rhod rhoh rib- ribo ribu ridd ridi rido riho riht riot riou riri rith riti rito ritt ritu rob- robb robi robo robt robu rodd rodi rodo rohr rohu roid roio roir roit roiu roob rood rooi roor root rori roro rort roru roth roti roto rotr rott roub roud rouh rout rrrr rtdt rubb rubi rubu rudd rudi rudo ruhh ruhi ruhr ruid ruit rurd ruri ruro ruru ruth ruti ruto rutt rutu ruud tbit tbrb tddb tdor tdri thdr thi- thio thir thoo thor thot thou thri thro thru thtb thtr thud thur tibi tibu tidd tiht tihu tiit tiiu tiou tirb tird tiri tiro tirr tiru tith titi tito titt titu tobi tobo tobt tobu todd todi todo todt todu tohi toho tohu toid toit tood tooh toor toot tord tori toro torr tort toru totd toth toti toto totr tott touh toui tour tout tri- trib trio trit trod troi troo trot trou trtr trub trud trut truu ttbb tttt tubb tubo tubr tubu tudi tudu tuht tuhu tuit tuiu tuor turb turd turi turo turr turt turu tuti tuto tutt tutu tuuo ubbi ubbo ubid ubii ubir ubit ubod ubud uddi udid udir udoh udoo udot uh-d uhid uhoh uhti uhuh uirr uor- urbi urdu urho urib uriu uro- uroo urrh urri urth urur urut utid utor utri utti utto uttu uuri uuuu