dddd ddss dfds dfrf dfri didi dido dids dif- diff difs diii diis diki diko dior dios dird dirk dirr dirs dis- disd disi disk diso diss dkid dod- dodd dodi dodo dods doff doid dois doki doko dood doof dook door doos dord dorf dori dork doro dorr dors dosi dosk doso doss drif drod drof drrs dsdr dsif dsos dsri dsrr dssi f--k fdos ffff ffii ffrr ffss fidf fido fids fiff fifi fifo fiii fiki fior fios firk firs fisd fisi fisk fiss fofo foid fois foki food foof fook foos for- ford fori fork foro forr fors fosi foso foss frid frik frio fris fros frso fsfi fsfo fssf iddo idid idio idir idis idos idrf idro idsf idso idss ifid ifis ifor ifrf ifri ifso iiii iiio iiis iioi iioo iios iirs iisd iisi iisr ikid ikki ikko ikoo ikri iod- iodd iodo ioii ioio ioko ioof iooi iooo ioos iori iors ioso irdo irds iri- irid irio iris irki irks irod irri irrs irsf isds isis iskf isko iso- isof isok isor isos isri issf issi isso issr isss k-id k-os kddd kddf kddi kddk kddr kdfi kdfo kdfr kdio kdis kdkd kdkk kdko kdkr kdok kdrf kdri kdro kdrs kdsd kdsk kdsr kdss kfff kffk kfio kfir kfis kfok kfoo kfor kfrd kfri kfro kfrr kfrs kfsd kfsi kfsk kfsr kidd kidi kidk kido kidr kids kiff kifr kifs kiid kiii kiik kiis kikd kikf kiki kikk kiko kikr kiod kioi kiok kioo kirf kiri kirk kiro kirr kirs kisd kisf kisi kisk kiso kisr kiss kkdd kkdo kkfi kkfr kkfs kkid kkik kkkk kkoo kkor kkrf kkrk kkro kkrr kkrs kksd kksf kksi kksr kkss kodi kodk kodo kods koff kofi kofk kofo koii koir kokf koki kokk koko kokr koks kooi kook kooo koor koos kord korf kori kork koro korr kors kos- kosd kosf kosi koso kosr koss krdd krdo krdr krds krfd krff krfo krfs krid krik krio kris krkd krki krkk krko krkr krks krod krof kroi krok kroo kror kros krrf krri krrk krro krrr krrs krsd krsf krsk krsr krss ksdi ksdk ksdr ksds ksfi ksfo ksfr ksid ksif ksii ksik ksir ksis kskd kskf kskk ksko kskr ksks ksof ksoi ksok ksoo ksor ksos ksrf ksro ksrr ksrs kssi ksso kssr ksss oddd oddi odds odio odir odis odoo odor odos odso ofdr off- offo offr offs ofid ofik ofor oido oids oiii oiko oiks oios oisd okir okko okok okor okro oksi okso oodi ooff oofs ooid oooo ooos oord oosi ordo ords orff orfi orfs ori- orid orif orio oris orko oro- orof orok oror oros orri orro orrs orsi orsk orso osdi osii osik osis oski osoi osoo osor osos osrd osro ossd ossi osso rdio rdos rdso rfdi rfds rfid ridd ridi rido rids riff rifs riif riis riki rikk rios riri rirs risd risi risk riso riss rkkf rkos rkss rodd rodi rodo rods roff rofo roid roif roik roio roir rois roki rokk roko rokr roks rood roof rooi rook roor roos rori rork roro rosi roso ross rrif rrrr rsdd rsds rsid rsis rsos s-ii s-os sdds sdif sdio sdrs sdsf sdss sfdk sfio sfor sfos sfro sfss sidd sidi sido sidr sids siff sifo sifr siik siki siko sikr siks siod sior sios sirf siri sirk siro sirr sirs sisd sisi sisk siss skid skif skik skio skir skis skor sksd skss sodd sodo sods sofi sofo soif soik soir sois soki sokk soko sood soof sook soor soos sord sori soro sorr sors sosi soso soss srfi sris sros srsd ssdd ssdf ssid ssis ssri ssrs sssf sssi ssss