f--k ffff ffii ffrr ffss ffvs fiff fifi fifo fiii fiil fiki fili filk fill filo fils fior fios firk firs fisi fisk fiss flii flik flis flok floo flor flos fofo foil fois foki foli folk foll folo folr fols foof fook fool foos for- fori fork forl foro forr fors fosi foso foss fr-v frik fril frio fris frol fros frso fsfi fsfo fssf ifil ifis ifor ifrf ifri ifso iiii iiio iiis iioi iioo iios iirs iisi iisr ikki ikko ikoo ikri ilio ilir ilis ilki ilks ill- illi illo ills ilok iloo ilos ioii ioio ioko iolo ioof iooi iooo ioos iori iors ioso iri- iril irio iris irki irks irov irri irrs irsf irvs isil isis iskf isko isls iso- isof isok isol isor isos isri issf issi isso issr isss ivor ivrs k-lo k-os kfff kffk kffv kfil kfio kfir kfis kfiv kflf kfli kfll kflo kfls kflv kfok kfoo kfor kfri kfro kfrr kfrs kfsi kfsk kfsr kfvr kfvs kiff kifl kifr kifs kiii kiik kiis kikf kiki kikk kiko kikr kili kilk kill kilo kilr kioi kiok kiol kioo kirf kiri kirk kiro kirr kirs kirv kisf kisi kisk kisl kiso kisr kiss kisv kivi kkfi kkfr kkfs kkik kkkk kklf kkli kkll kklo kkls kklv kkol kkoo kkor kkov kkrf kkrk kkrl kkro kkrr kkrs kkrv kksf kksi kksr kkss kkvr kkvv klff klfi klfv klif klik klil klio klir klis kliv klkk klkl klko klkr klks klkv kllk klls kllv klok klol kloo klor klos klov klrf klrk klrr klrs klsf klsi klsr klsv klvf klvi klvk klvl klvo klvs klvv koff kofi kofk kofo koii koil koir koiv kokf koki kokk koko kokr koks kolf koli kolk koll kolo kolr kols kolv kooi kook kool kooo koor koos koov korf kori kork korl koro korr kors korv kos- kosf kosi koso kosr koss kovi kovk kovo kovr krff krfo krfs krik kril krio kris kriv krki krkk krko krkr krks krkv krlf krlv krof kroi krok krol kroo kror kros krov krrf krri krrk krrl krro krrr krrs krsf krsk krsl krsr krss krsv krvf krvi krvk krvl krvo krvr krvs krvv ksfi ksfo ksfr ksif ksii ksik ksil ksir ksis ksiv kskf kskk ksko kskr ksks ksli kslk ksll kslo kslr kslv ksof ksoi ksok ksol ksoo ksor ksos ksrf ksro ksrr ksrs ksrv kssi kssl ksso kssr ksss ksvi ksvl ksvr kvik kvil kvir kvis kviv kvkl kvli kvlo kvlr kvlv kvoi kvok kvol kvoo kvor kvov kvrf kvri kvro kvrr kvrv kvsf kvsi kvsl kvso kvsr kvss kvsv kvvf kvvl kvvr kvvs kvvv liff lifl lifo liii liir liis liiv liko lili lill lilo lils lio- lior lios liri lirk lirl liro lirr lirs lisi lisk liso liss livi livo livs lkfs lkrs llks llll lloo lo-v loff lofi loif loik loir lois loki lokk loko loli loll lolo lols loof look lool loor loos lori lork loro lors losi loso loss lovo lrif lroi lrrr ls-r lsof lsso lssr lvii lviv lvov lvrr lvsv off- offo offr offs ofik ofor oiii oiko oiks oils oios okir okko oklo okok okol okor okro oksi okso olfs olio olis olki olli ollo olof olor olos olov olsi olvi ooff oofs oolo oooo ooos oosi orff orfi orfs ori- orif oril orio oris orko orlo oro- orof orok oror oros orri orro orrs orsi orsk orso orvr orvs osii osik osis oski osli oslo osoi osoo osor osos osov osro ossi osso ovfl ovi- ovil ovis ovo- ovol ovoo rffl riff rifs riif riis riki rikk rill rilo riol rios riri rirs risi risk riso riss rivo rivs rkkf rkos rkss rksv rlif rlls roff rofl rofo roif roik roil roio roir rois roki rokk roko rokr roks rolf rolk roll rolo roof rooi rook rool roor roos rori rork roro rosi roso ross rovi rovo rovs rrif rrrr rsis rsos rssl rvik s-ii s-iv s-os sfio sfls sfor sfos sfro sfss siff sifl sifo sifr siik siki siko sikr siks sil- silf sili silk sill silo sils siol sior sios sirf siri sirk siro sirr sirs sisi sisk siss sivi skif skik skil skio skir skis skiv skol skor skov skss sl-i slik slir sloo slos slrs sofi sofo soif soik soil soir sois soki sokk soko solf soli solk soll solo solr sols solv soof sook sool soor soos sori soro sorr sors sosi soso soss sosv sovo sovs srfi sris srlv sros srvl ssfl ssis ssri ssrl ssrs sssf sssi ssss svil svir svor vfli vflo vfor viff viii viik viki viko vili vill vils viol vios viri virk virl viro virr visi visk viso viss vivi vivo vkor vlfs vlks vlli vlok vlos vlsi voff vofr voil voio voir vois voks volf voli volk voll volo vols vool voor vor- vori voro vors vosi voso voss vovk vril vrio vris vrsi vsfs vssl vvvv