irtf irti irts isin isis isit iskf isko isno isnt iso- isof isok ison isor isos isrg isri issf issi isso issr isss isti isto istr ists itgo itgs itif itin itis itko itno itof itoi iton itoo itor itos itrf itri itrs itsf itsi itso ittf itto k-os kfff kffg kffk kffn kfgi kfgo kfgr kfig kfin kfio kfir kfis kfit kfnf kfnk kfnn kfno kfns kfog kfok kfon kfoo kfor kfrg kfri kfrn kfro kfrr kfrs kfsg kfsi kfsk kfsr kfst kftg kfti kftk kftt kgff kgfk kgft kggf kggg kggi kggo kggr kgif kgio kgir kgks kgng kgni kgno kgnr kgnt kgon kgor kgos kgot kgrg kgri kgrk kgrn kgro kgrr kgrs kgrt kgso kgsr kgst kgtf kgtk kgto kgts kiff kifg kifr kifs kift kign kigo kigs kiii kiik kiis kiit kikf kiki kikk kiko kikr kikt kin- kinf king kini kink kinn kino kins kint kioi kiok kion kioo kiot kirf kiri kirk kirn kiro kirr kirs kirt kisf kisi kisk kisn kiso kisr kiss kist kitg kiti kitn kito kitr kits kitt kkfg kkfi kkfn kkfr kkfs kkft kkgo kkgr kkik kkin kkit kkkk kkni kknn kkno kkns kknt kkon kkoo kkor kkot kkrf kkrk kkrn kkro kkrr kkrs kkrt kksf kksi kksn kksr kkss kkst kktk kkts knfo knfr knft kngn kngr kngt knif knik knin knir knis knit knki knkk knkt knng knnk knnr knns knog knok knon knor knot knrg knrk knro knrs knsg knsi knsk knsn knso knsr knss knst knti kntk kntn knto kntr knts koff kofg kofi kofk kofo koft kogg kogi kogn kogo kogt koii koin koir koit kokf koki kokk kokn koko kokr koks kong koni konk kono kont koog kooi kook koon kooo koor koos koot korf korg kori kork korn koro korr kors kort kos- kosf kosg kosi koso kosr koss kost koti kotk kotn koto kotr kots kott krff krfg krfn krfo krfs krft krgi krgn krgs krgt krik krin krio kris krit krki krkk krkn krko krkr krks krng krni krnk krnn krno krnt krof krog kroi krok kroo kror kros krrf krrg krri krrk krrn krro krrr krrs krrt krsf krsk krsn krsr krss krst krti krtk krtn krto krtr krts ksfi ksfn ksfo ksfr ksft ksgf ksgg ksgn ksgr ksgt ksif ksig ksii ksik ksir ksis ksit kskf kskg kskk kskn ksko kskr ksks ksnf ksng ksnk ksnn ksnr ksns ksnt ksof ksoi ksok kson ksoo ksor ksos ksrf ksrg ksrn ksro ksrr ksrs ksrt kssi kssn ksso kssr ksss ksst ksti kstk kstn ksto kstr ksts kstt ktfi ktfn ktfo ktfs ktgf ktgg ktgo ktgr ktgs ktig ktik ktis ktkk ktkn ktko ktkr ktks ktkt ktnf ktnk ktnn ktno ktns ktnt ktok kton ktoo ktor ktot ktrf ktrg ktri ktrk ktrn ktro ktrr ktrs ktrt ktsf ktsn ktso ktsr ktst kttf kttg ktti kttk kttn ktto kttr ktts kttt n-ii nfff nfon nfrs nfsr nfto ngfs ngio ngns ngon ngor ngos ngri ngsk ngsn ngtn ngts niff nift nigg nigo nigs nigt niir niit niki niko niks ning nini nino nins niog nion nioo nios niro nirs nirt nisi niso niss nist nitf niti nito nitr nits nkio nknt nkok nkor nkrf nktr nngn nnit nnnn nnos nnot nnss nntn nofi nogg nogo nogs nogt noif noik noin noio noir nois noit noki noko non- nong noni nonn nono nons nont noo- nook noon nooo noor noos noot nor- norf norg nori nork norn noro norr nors nort nos- nosk noss nost not- noti noto nots nott nron nrts nsfk nsfs nsin nsis nskk nsnr nsof nsok nsos nssf nsso nssr nsss nsts ntfs ntis ntof ntsf ntss ntto nttr off- offo offr offs ofgo ofik ofit ofno ofor ofst ogfr oggi ogin ogni ogog ogoi ogon ogri ogro ogsi oigo oiii oiko oiks oink oins oint oion oios oirt oist oiti okgo okir okko okni okno okok okon okor okot okro oksi okso okto ongi ongo onir onis onit onni onno onon onor onos onso onst ont- onti onto ooff oofs oons oont oooo ooos oort oosi oost oots orff orfi orfs orgn orgo orgs ori- orif orig orin orio oris orit orko orni orno orns oro- orof orok oron oror oros orot orri orro orrs orsi orsk orso orto orts osgi osii osik osin osis oski osno osnr osoi osoo osor osos osro ossi osso osti ostr osts otif otin otis otit oto- otof otog otok oton otoo otor otos otro otrs otsg otso otti otto otts rfgs rgit rgtr rgts riff rifs rift rigg rigi rigo rigs riif riin riis riki rikk rinf ring rink rinn rino rion rios riot riri rirs risi risk riso riss rist riti rito rits ritt rkkf rkos rkss rkts rngs rnin rnnt rnot roff rofo rogg rogi rogo roif roig roik roin roio roir rois roit roki rokk roko rokr roks rong roni ronk rono rons ront roof roog rooi rook roon roor roos root rori rork roro rort rosi roso ross rost rotg roti rotk rotn roto rotr rots rott rrif rrrr rsis rsnn rsno rsnr rsos rsts rtgs rtkg rtkn rtns rtss rtts s-ii s-os sfio sfnt sfog sfor sfos sfro sfss sfts sggg sggs sgio sgro sgss sgts siff sifo sifr sift sigg sigi sign sigo sigs siik siit siki siko sikr siks sing sini sink sinn sino sins sint sion sior sios siot sirf siri sirk siro sirr sirs sirt sisi sisk siss sist sit- siti sitn sito sits sitt skif skig skik skin skio skir skis skit skn- skog skon skor skot skrt skss snig snir snit snns snog snoo snor snos snot snrk snrs sntr sofi sofo soft sogi sogn sogo sogs soif soik soin soir sois soit soki sokk sokn soko son- song soni sonk sono sons sont soof soog sook soon soor soos soot sorg sori sorn soro sorr sors sort sosi soso soss sost sotk sotn soto sots srfi sris srni srnn srno sros srtr ssgs ssgt ssin ssis ssit ssns