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-ous ffff ffii ffss fftf fiff fifi fifo fift fiii fiil fili fill filo fils fios fisi fiss fist fisu fiti fits fitt flii flis flit floo flos flot flou flts fluf fluo flus fofo foil fois foli foll folo fols folt foof fool foos foot fosi foso foss fost foti foto fots fott foul fous fout fsfi fsfo fssf ft-l ftii ftos fuff fufu fuil fuit fuli full fuls fulu fusi fuso fuss fust fusu futi futo futs futu ifil ifis ifit ifso ifto iiii iiio iiis iiit iioi iioo iios iisi iist iisu iitt ilio ilis ilit ill- illi illo ills illt iloo ilos ilot ilts ilus ilut ioii ioio ioit iolo ioof iooi iooo ioos ioso iosu iotf ioto ious isil isis isit isls iso- isof isol isos issf issi isso isss issu isti isto ists isus itif itil itis itll itof itoi itol itoo itos itou itsf itsi itso itsu ittf itto iuiu iuss iust lfts liff lifl lifo lift liii liis lili lill lilo lils lilt lilu lio- lios lisi liso liss list lisu liti litl lito lits litt litu liuf lius liut llll lloo loff lofi loft loif lois loit loiu loli loll lolo lols loof lool loos loot losi loso loss lost loti lotl loto lots lott loui loul lous lout louu lsof lsso lsts ltsi luff luft lufu luif luis luit luli lull lulu lusi luso luss lust luti luts off- offo offs offu ofit ofst ofus oiii oils oios oist oisu oiti olfs olio olis olit olli ollo olof olos olot olsi olst oltu ooff oofs oolo oooo ooos oosi oost oots oous osii osis osli oslo osoi osoo osos ossi osso ossu osti osts osul otif otis otit oto- otof otoo otos otso otsu otti otto otts ottu otus ouff ouii ouis ouit ouls oulu oust out- outi outo outs ouu- s-ii s-os sfio sfls sfos sfss sfsu sfts siff sifl sifo sift sifu siit sil- silf sili sill silo sils silt silu siol sios siot siou sisi siss sist sisu sit- siti sito sits sitt situ siui sius siut sl-i slft slit sloo slos slot slst slsu slts slut sofi sofo soft soif soil sois soit solf soli soll solo sols solt soof sool soos soot sosi soso soss sost sotl soto sots sotu souf soul sous sout ssfl ssis ssit sslt ssot sssf sssi ssss sstl ssts stfu stif stil stio stis stit stlo stlt stof stol stoo stos stot stou stsf stsi stss stuf stul stus stut suf- suff sufi sufs sufu suio suis suit sul- sulf suli sull sulo sult sulu suos sus- susi suso suss sust susu suti suto sutu suus tfot tfsi tfss tiff tifo tift tiit tiiu till tilo tils tilt tios tiou tisi tiso tiss tist titi tito tits titt titu tlli tlos toff tofi tofo toft tofu toil tois toit tol- toli toll tolo tolt tolu toof tool toos toot tosi toso toss tost tosu toti toto tots tott toui toul tous tout tsfl tsis tsoi tsol tsos tsou tssf tssi tsst tsts tsui ttff ttss tttt ttul tuff tufi tufo tuft tufu tuil tuis tuit tuiu tuli tull tulo tulu tuos tusi tuss tust tuti tutl tuto tuts tutt tutu tuuo ufos uist uits ulft ulli ullo ulo- ulos ulti ulto ults ultt ulul ulus uofl uofo usfi usfl usfs usif usis uslu usoi usos ussf usss usst ussu usti usto usts usui usul usus utfo util utis utsl utti utto uttu uulu uusi uutf uuuu

-itis fili- fillo fills filot filst filtu fissi fisto fists fitil fitit fitof fitou fitto fitts flist flits floss floto flout fluff fluit fluo- fluss fofos foils foios foist folio folli follo foloi fooli fools footi foots fosil fotos fotui fotus fouls foust fouts fsoil fu-fu fuffs fullf fullo fulls fults fusi- fusil fusio fuso- fusts fusus futsu if-- iffou ifill ifits ifius ifttt iiiii iitti ilfis iliff ilift ilio- ilios