dosi doso doss dost dotd doth doti doto dots dott doub doud dour dous dout drhs drib drih drit drob drod droh drot drou drrs drub drui drus drut druu dsdr dshs dsos dsri dsrr dssi dsst dsto dsts dthd dtor dtot dtss dub- dubb dubh dubs dubu dudd dudo duds dudu duhr duhs duhu duid duir duis duit duo- duos duri duro durt duru dush dusi dust duts duur duut h-ii hbbs hbds hbhs hbio hbit hbos hbrs hbss hbtu hdhs hdod hdos hdri hdss hdtt hhds hhhh hhhs hhus hibi hibt hibu hidi hids hihi hiho hiht hiis hiit hiiu hiob hird hiri hiro hirs hirt hiru hisb hisd hish hiss hist hiti hito hits hitt hobo hobs hodh hodi hodr hods hoho hoid hoir hois hoit hood hoor hoos hoot hord hori horo horr hors hort hosh hoss host hotb hotd hoth hoti hoto hotr hots hott hotu houd hour hout hrhs hrib hrid hrit hrob hrod hros hrso hrtb hrud hshs hsob hsts hsur hths htoh httr hubb hubi hubo hubs hudd hudi hudo huds hudu huhi huhs huhu huib huid huir huis huit huor huos huot hurd huri huro hurr hurs hurt huru hush husi huso huss hust huth huti huto huts hutt hutu huub huus ibdo ibid ibis ibos ibot ibrd ibri ibro ibss ibtb ibts ibus iddo idid idio idir idis idos idro idso idss idts idub iduo idus ihdr ihis ihit ihob ihrd ihss ihub ihud ihuo iiht iiii iiio iiis iiit iioi iioo iios iirs iisd iisi iisr iist iisu iitr iitt iobi iod- iodd iodo ioii ioio ioit iooi iooo ioos iori iors ioso iosu ioto ious irdo irds irhs iri- irid irio iris irob irod iroh irri irrs irti irts irus isbd isbt isdb isds ishi ishr ishs isis isit iso- isor isos isri issh issi isso issr isss issu istd isth isti isto istr ists isuh isus itbs itdo iths itis itoh itoi itoo itor itos itou itri itrs itsi itso itsu itto itur iuds iuiu iusd iuss iust obbo obdt obhs obid obis obit oboi obor obos obot obrh obri obro obsd obsr obss obst obtd obts obuh obus odbo oddd oddi odds odio odir odis odiu odoh odoo odor odos odot odou odso odts odtu odur odus ohhi ohho ohhs ohid ohio ohis ohob ohoh ohos ohso ohss ohto ohtu ohus oido oids oiii oios oirt oisd oist oisu oiti oobi oodi ooho oohs ooid oooh oooo ooos oord oort oosi oost ootb oots oous orbb orbi orbo orbs orbu ordo ords ordu orhs ori- orid orio oris orit oro- oror oros orot orri orro orrs orsi orso orsu orth orto orts orub orus osdi oshi osho oshs oshu osii osis osoi osoo osor osos osrd osro ossb ossd ossi osso ossu osti ostr osts otbd otbs otho othr oths otis otit oto- otoh otoo otor otos otro otrs otso otsu otti otto otts ottu otur otus oubs oudh ouds ouii ouir ouis ouit our- ouro ours ourt ousd oust out- outb outh outi outo outs ouu- rbbb rbbr rbbs rbds rbhs rbis rboh rbsd rbss rbst rdhs rdio rdos rdso rhhs rhib rhio rhob rhod rhoh rhos rhus rib- ribo ribs ribu ridd ridi rido rids riho rihs riht riis rios riot riou riri rirs risd rish risi riso riss rist risu rith riti rito rits ritt ritu rius rob- robb robi robo robs robt robu rodd rodi rodo rods rohr rohs rohu roid roio roir rois roit roiu roob rood rooi roor roos root rori roro rort roru rosh rosi roso ross rost roth roti roto rotr rots rott roub roud rouh rous rout rrhs rrrr rsbi rsdd rsds rshd rshs rsid rsis rsos rsts rstu rtdt rths rtss rtts rubb rubi rubs rubu rudd rudi rudo ruds ruhh ruhi ruhr ruhs ruid ruis ruit rurd ruri ruro rurs ruru rush rusi ruso russ rust rusu ruth ruti ruto ruts rutt rutu ruud s-ib s-ii s-os sbbs sbds sbhs sbor sbot sbsd sbsi sbst sbus sdds sdhb sdhd sdhs sdib sdio sdot sdrs sdss sdsu shbs shbt shhh shhs shib shid shih shii shio shir shis shit shiu shod shoo shor shos shot shou shri shrs shts shub shud shui shur shus shut shuu sibi sibo sibs sibu sidd sidh sidi sido sidr sids sihi sihr sihs siht sihu siit siod sior sios siot siou siri siro sirr sirs sirt siru sisd sish sisi siss sist sisu sit- sitd sith siti sito sits sitt situ siui sius siut sobo sobr sobs sobt sobu sodd sodo sods sodu sohh soho sohs sohu soir sois soit sood soor soos soot sorb sord sorh sori soro sorr sors sort soru sosh sosi soso soss sost soth soto sots sotu soud sour sous sout srhs srib sris sros srsd srtr srub ssbr ssdd sshs ssid ssis ssit ssot ssri ssrs sssb sssh sssi ssss sstb sstd ssth ssts stbd stbs stds sths stib stid stih stio stir stis stit stob stod stoo stor stos stot stou strd stri stro strs stru stsi stss sttd sttr stub stud stur stus stut sub- subb subd subh subi subo subs sudd sudh sudi sudo suds suhb suhi suho suhr suid suio suir suis suit suoh suor suos sur- surd suri suro surr surs surt suru sus- susd susi suso suss sust susu suti suto sutu suus tbbs tbhs tbit tbrb tbst tddb tdhs tdis tdor tdri tdss thbs thdr thds thi- thio thir this thoo thor thos thot thou thri thro thru thsd thsr thss thtb thtr thts thud thur thus tibi tibs tibu tidd tids tiht tihu tiit tiiu tios tiou tirb tird tiri tiro tirr tirs tiru tisb tish tisi tiso tiss tist tith titi tito tits titt titu tobi tobo tobs tobt tobu todd todi todo tods todt todu tohi toho tohu toid tois toit tood tooh toor toos toot tord tori toro torr tors tort toru tosb tosh tosi toso toss tost tosu totd toth toti toto