iiii iiis iiit iirs iisi iisr iist iitr iitt ikki ikri iri- iris irki irks irri irrs irti irts irvs isis isit isri issi issr isss isti istr ists itis itri itrs itsi ivrs kiii kiik kiis kiit kiki kikk kikr kikt kiri kirk kirr kirs kirt kirv kisi kisk kisr kiss kist kisv kiti kitr kits kitt kitv kivi kkik kkit kkkk kkrk kkrr kkrs kkrt kkrv kksi kksr kkss kkst kktk kkts kktv kkvr kkvt kkvv krik kris krit kriv krki krkk krkr krks krkv krri krrk krrr krrs krrt krsk krsr krss krst krsv krti krtk krtr krts krtv krvi krvk krvr krvs krvv ksii ksik ksir ksis ksit ksiv kskk kskr ksks ksrr ksrs ksrt ksrv kssi kssr ksss ksst ksti kstk kstr ksts kstt kstv ksvi ksvr ktik ktis ktiv ktkk ktkr ktks ktkt ktri ktrk ktrr ktrs ktrt ktrv ktsr ktst ktti kttk kttr ktts kttt kttv ktvi ktvk ktvr ktvt kvik kvir kvis kvit kviv kvri kvrr kvrv kvsi kvsr kvss kvst kvsv kvti kvtk kvtr kvtt kvtv kvvr kvvs kvvv riis riki rikk riri rirs risi risk riss rist riti rits ritt rivs rkss rksv rkts rrrr rsis rsts rtss rtts rtvi rvik s-ii s-iv s-vt siik siit siki sikr siks siri sirk sirr sirs sirt sisi sisk siss sist sit- siti sits sitt sivi skik skir skis skit skiv skrt skss sris srtr srtv ssis ssit ssri ssrs sssi ssss ssts st-v stik stir stis stit stks stri strk strs stsi stss sttr stvs svir svit svtr tiit tiki tiri tirr tirs tisi tiss tist titi tits titt tivi tkts tri- trik tris trit trsi trst trtr trvs tsis tsiv tsks tssi tssr tsst tsts tsvi ttss tttt tvis tvri tvrr tvss tvtv viii viik viki viri virk virr virt visi visk viss vist viti vitt vivi vris vrsi vt-i vtrs vvvv