-ism ffff ffii ffss fftf fiff fifi fifm fift fiii fisi fism fiss fist fisu fiti fits fitt fmss fsfi fsim fssf ftii fuff fufu fuit fumi fums fusi fuss fust fusu futi futs futu ifim ifis ifit iiii iiis iiit iisi iism iist iisu iitm iitt iium imfi imit immi imms immt imsf imsi imss imst imsu imts imus isim isis isit ismi isms issf issi isss issu isti ists isum isus itif itim itis itms itsf itsi itsu ittf itum iuiu iums iuss iust mftf miff mifi miii miis miit mim- mimi mims mis- misi miss mist misu mit- miti mitm mits mitt mitu miui mmff mmii mmis mmmm mmms mmst mmsu mmts mmus msff msfs msft msmm msms msmu mssf mssi mssm msst msts msus mtff mtss mtst mtts muff mufi mufu muis muit mumm mums mumu musi muss must musu muti muts mutt mutu muut s-ii sfmm sfss sfsu sfts siff sift sifu siim siit simi simm sims simt sisi siss sist sisu sit- siti sits sitt situ siui sium sius siut smif smis smit smss smti smtu smus smut ssis ssit sssf sssi sssm ssss ssts stfu stif stim stis stit stms stmt stsf stsi stsm stss stuf stum stus stut suf- suff sufi sufs sufu suis suit sum- sumi sums sumu sus- susi suss sust susu suti sutu suum suus tfsi tfss tiff tift tiit tiiu timi timm tims timu tisi tism tiss tist titi tits titt titu tium tmsi tmtt tsfm tsis tssf tssi tssm tsst tstm tsts tsui tsum ttff ttim ttms ttss tttt tuff tufi tufm tuft tufu tuim tuis tuit tuiu tumi tums tumu tusi tusm tuss tust tuti tuts tutt tutu tuum ufms uims uist uits umff umit umms umsu umts umus umut usfi usfs usif usim usis usmm usms ussf usss usst ussu usti ustm usts usui usus utis utti uttu uusi uutf uuuu