-ous dddd ddot ddss ddts dfds dfdt dfrf dfri dftr dfts didi dido dids didu dif- diff difs diii diis dior dios diot diou dird dirr dirs dirt dis- disd disi diso diss dist diti dito dits ditt dius dod- dodd dodi dodo dods doff doid dois doit dood doof door doos doot dord dorf dori doro dorr dors dort doru dosi doso doss dost dotd doti doto dots dott doud douf dour dous dout douw dowd dowf dowr dows dowt drif drit drod drof drot drou drow drrs drui drus drut druu dsdr dsif dsos dsri dsrr dssi dsst dsto dsts dtor dtot dtss dudd dudo duds dudu duff dufu duid duif duir duis duit duo- duos duri duro durt duru dusi dust duts duur duut dwdd dwdu dwi- dwid dwis dwor dwrd dwrt dwrw dwsr dwst dwti dwts dwww fdos fdot fdst fdti ffff ffii ffrr ffss fftf fftw ffwd fidf fido fids fiff fifi fifo fift fiii fior fios firs fisd fisi fiss fist fisu fiti fits fitt fofo foid fois food foof foos foot for- ford fori foro forr fors fort fosi foso foss fost foti foto fots fott fotw foud four fous fout fowd frid frio fris frit fros frot frou frow frso frst fsfi fsfo fssf ftdi ftii ftos ftrs ftsr fttw ftwo fudd fudi fuff fufu fuid fuir fuit fuor fur- furi furo furr furs furt fusd fusi fuso fuss fust fusu futi futo futs futu fwdd fwiw iddo idid idio idir idis idos idrf idro idsf idso idss idts iduo idus ifid ifis ifit ifor ifrf ifri ifso ifto iiii iiio iiis iiit iioi iioo iios iirs iisd iisi iisr iist iisu iitr iitt iiwi iod- iodd iodo ioii ioio ioit ioof iooi iooo ioos iori iors ioso iosu iotf ioto ious irdo irds irfu iri- irid irio iris irod irri irrs irsf irtf irti irts irus isds isis isit iso- isof isor isos isri issf issi isso issr isss issu istd isti isto istr ists isus itdo itif itis itof itoi itoo itor itos itou itrf itri itrs itsf itsi itso itsu ittf itto itur iuds iuiu iusd iuss iust iwis iwiw oddd oddi odds odio odir odis odiu odoo odor odos odot odou odso odts odtu odur odus ofdr off- offo offr offs offu ofid ofit ofor ofst ofus oido oids oiii oios oirt oisd oist oisu oiti oodi ooff oofs ooid oooo ooos oord oort oosi oost oots ootw oous ordo ords ordu orff orfi orfs orfu ori- orid orif orio oris orit oro- orof oror oros orot orri orro orrs orsi orso orsu orto orts orus orwo osdi osii osis osoi osoo osor osos osow osrd osro ossd ossi osso ossu osti ostr osts otif otis otit oto- otof otoo otor otos otow otro otrs otso otsu otti otto otts ottu otur otus otwo ouds ouff ouii ouir ouis ouit our- ouro ours ourt ousd oust out- outi outo outs ouu- owir owow owt- owtt owur rdio rdos rdso rfdi rfds rfid ridd ridi rido rids riff rifs rift rifu riif riis rios riot riou riri rirs risd risi riso riss rist risu riti rito rits ritt ritu rius riwo rodd rodi rodo rods rodw roff rofo roid roif roio roir rois roit roiu rood roof rooi roor roos root rori roro rort roru rosi roso ross rost roti roto rotr rots rott roud rouf rous rout rowd rowf rowi rowr rows rowt roww rrif rrrr rsdd rsds rsid rsis rsos rsts rstu rtdt rtss rtts rudd rudi rudo ruds ruff rufo ruft ruid ruif ruis ruit rurd ruri ruro rurs ruru rusi ruso russ rust rusu ruti ruto ruts rutt rutu ruud ruwi rwdi s-ii s-os sdds sdif sdio sdot sdrs sdsf sdss sdsu sfio sfor sfos sfro sfss sfsu sfts sfwu sidd sidi sido sidr sids siff sifo sifr sift sifu siit siod sior sios siot siou sirf siri siro sirr sirs sirt siru sisd sisi siss sist sisu sit- sitd siti sito sits sitt situ siui sius siut siwi sodd sodo sods sodu sofi sofo soft soif soir sois soit sood soof soor soos soot sord sori soro sorr sors sort soru sosi soso soss sost soto sots sotu sotw soud souf sour sous sout sowd sowf sowi sowr sows sowt srfi sris sros srsd srtr ssdd ssdf ssid ssis ssit ssot ssri ssrs sssf sssi ssss sstd ssts ssws stds stfu stfw stid stif stio stir stis stit stod stof stoo stor stos stot stou stow strd stri stro strs stru stsf stsi stss sttd sttr stud stuf stur stus stut stwd sudd sudi sudo suds suf- suff sufi sufr sufs sufu suid suio suir suis suit suor suos sur- surd surf suri suro surr surs surt suru sus- susd susi suso suss sust susu suti suto sutu suus suwu swfu swir swis swit swod swoo swor swot swow swsd swss swts tdff tdis tdor tdri tdss tfot tfrs tfsd tfsi tfss tidd tids tiff tifo tift tiit tiiu tios tiou tird tiri tiro tirr tirs tiru tisi tiso tiss tist titi tito tits titt titu tiwi todd todi todo tods todt todu toff tofi tofo toft tofu toid tois toit tood toof toor toos toot tord torf tori toro torr tors tort toru tosi toso toss tost tosu totd toti toto totr tots tott toui tour tous tout tows trfd trfr tri- trif trio tris trit trod troi troo tros trot trou trow trsd trsi trst trtr trud trus trut truu tsid tsis tsoi tsos tsou tssf tssi tssr tsst tsts tsui ttff ttss tttt tudi tudu tuff tufi tufo tuft tufu tuis tuit tuiu tuor tuos turd turf turi turo turr turs turt turu tusd tusi tuss tust tuti tuto tuts tutt tutu tuuo twdt twi- twis twit two- twod twof twoo twos twot twss uddi udds udid udir udoo udos udot udsd udts ufos uirr uisd uist uits uofo uofw uor- urds urdu urff urfi urft urif uris uriu uro- uroo