dddd ddot ddss ddts dfds dfdt dfrf dfri dftr dfts didi dido dids dif- diff difs diii diis dior dios diot dird dirr dirs dirt dis- disd disi diso diss dist diti dito dits ditt dod- dodd dodi dodo dods doff doid dois doit dood doof door doos doot dord dorf dori doro dorr dors dort dosi doso doss dost dotd doti doto dots dott dowd dowf dowr dows dowt drif drit drod drof drot drow drrs dsdr dsif dsos dsri dsrr dssi dsst dsto dsts dtor dtot dtss dwdd 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 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 fowd frid frio fris frit fros frot frow frso frst fsfi fsfo fssf ftdi ftii ftos ftrs ftsr fttw ftwo fwdd fwiw iddo idid idio idir idis idos idrf idro idsf idso idss idts ifid ifis ifit ifor ifrf ifri ifso ifto iiii iiio iiis iiit iioi iioo iios iirs iisd iisi iisr iist iitr iitt iiwi iod- iodd iodo ioii ioio ioit ioof iooi iooo ioos iori iors ioso iotf ioto irdo irds iri- irid irio iris irod irri irrs irsf irtf irti irts isds isis isit iso- isof isor isos isri issf issi isso issr isss istd isti isto istr ists itdo itif itis itof itoi itoo itor itos itrf itri itrs itsf itsi itso ittf itto iwis iwiw oddd oddi odds odio odir odis odoo odor odos odot odso odts ofdr off- offo offr offs ofid ofit ofor ofst oido oids oiii oios oirt oisd oist oiti oodi ooff oofs ooid oooo ooos oord oort oosi oost oots ootw ordo ords orff orfi orfs ori- orid orif orio oris orit oro- orof oror oros orot orri orro orrs orsi orso orto orts orwo osdi osii osis osoi osoo osor osos osow osrd osro ossd ossi osso osti ostr osts otif otis otit oto- otof otoo otor otos otow otro otrs otso otti otto otts otwo owir owow owt- owtt rdio rdos rdso rfdi rfds rfid ridd ridi rido rids riff rifs rift riif riis rios riot riri rirs risd risi riso riss rist riti rito rits ritt riwo rodd rodi rodo rods rodw roff rofo roid roif roio roir rois roit rood roof rooi roor roos root rori roro rort rosi roso ross rost roti roto rotr rots rott rowd rowf rowi rowr rows rowt roww rrif rrrr rsdd rsds rsid rsis rsos rsts rtdt rtss rtts rwdi s-ii s-os sdds sdif sdio sdot sdrs sdsf sdss sfio sfor sfos sfro sfss sfts sidd sidi sido sidr sids siff sifo sifr sift siit siod sior sios siot sirf siri siro sirr sirs sirt sisd sisi siss sist sit- sitd siti sito sits sitt siwi sodd sodo sods sofi sofo soft soif soir sois soit sood soof soor soos soot sord sori soro sorr sors sort sosi soso soss sost soto sots sotw 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 stfw stid stif stio stir stis stit stod stof stoo stor stos stot stow strd stri stro strs stsf stsi stss sttd sttr stwd 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 tios tird tiri tiro tirr tirs tisi tiso tiss tist titi tito tits titt tiwi todd todi todo tods todt toff tofi tofo toft toid tois toit tood toof toor toos toot tord torf tori toro torr tors tort tosi toso toss tost totd toti toto totr tots tott tows trfd trfr tri- trif trio tris trit trod troi troo tros trot trow trsd trsi trst trtr tsid tsis tsoi tsos tssf tssi tssr tsst tsts ttff ttss tttt twdt twi- twis twit two- twod twof twoo twos twot twss wddd wddo wddw wdis wdod wdor wdos wdow wdrr wdrt wdsd wdso wdsr wdst wdti wdtr wdtw wdwd wdwr wdws wfdd wfdf wfdr wfds wfff wfid wfif wfir wfis wfit wfiw wfor wfos wfot wfrd wfrf wfro wfrs wfrw wfsi wfso wfsr wfss wfst wftd wftf wftr wftw wfwi wfwo widi widr wids widw wiff wifi wifo wifr wift wiif wiii wiis wiit wiod wioi wioo wios wiot wird wiri wiro wirr wirt wisd wiso wisr wiss wist wisw witf witi witr wits witt wiwf wiwi wodd wodi wods wodt woff wofr woft woid woio woir wois wood woof woos woot woow word worf wori woro worr wors wort worw wosf woso woss wost wosw wotr wots wott wotw wowf wowi wowo wows wowt woww wrdd wrdf wrdi wrdo wrdr wrdt wrdw wrfd wrff wrfi wrfs wrft wrfw wrif writ wrod wroi wroo wros wrot wrow wrrd wrro wrrs wrrw wrsd wrsf wrsi wrso wrsr wrss wrsw wrti wrto wrtr wrts wrtw wrwd wrwr wsdr wsds wsfd wsff wsfr wsfs wsfw wsid wsif wsir wsis wsof wsoo wsor wsos wsrf wsri wsro wsrs wsrt wsrw wssd wssi wssr wsss wsst wssw wstf wsto wstr wsts wstt wstw wswd wswi wswr wsws wswt wsww wtdr wtid wtif wtis wtod wtof wtor wtot wtow wtri wtro wtrs wtrt wtrw wtsd wtsf wtso wtsr wtss wttf wtti wtto wttr wtts wttt wttw wtwf wtwo wtwr wtws wtwt wtww wwdr wwds wwdw wwfd wwfr wwfw wwii wwio wwis wwod wwof wwor wwos wwot wwow wwrd wwrf wwrr wwrw wwsd wwsf wwsi wwsr wwss wwst wwtd wwtf wwti wwtr wwtw wwwi wwwr wwws wwww