-nik bbbb bbbs bbin bibb bibi bibs biin biis bin- bini bink binn bins biny birb biri birk birn birr birs biry bis- bisk biss bisy biys bkry bnib bnin bnrr bnss brik brin bris brkb brns brrr brrs brsb brsr bry- bryk bryn bsin bsns byik byki bynk byrk byrn bysb bysi byss bysy i-by ibis ibns ibri ibsn ibss ibyi iiii iiis iirs iisi iisr ikin ikki ikky ikri inby inis inki inks inky inni innr inns inny inri inrs inss irby iri- irin iris iriy irki irks irri irrs iryn isbn isin isis isri issi issr isss issy isys kbbb kbbi kbbk kbbr kbbs kbib kbik kbis kbiy kbkb kbkk kbkr kbky kbnn kbnr kbrb kbri kbrk kbrn kbry kbsb kbsi kbsk kbsn kbsr kbss kbsy kbyb kbyi kbyn kbyr kbys kibb kibi kibr kibs kiby kiii kiik kiis kiki kikk kikr kin- kinb kini kink kinn kins kiny kirb kiri kirk kirn kirr kirs kisi kisk kisn kisr kiss kisy kiyi kiyk kiyn kiys kkbb kkbi kkbn kkbr kkbs kkik kkin kkkk kknb kkni kknn kkns kkrb kkrk kkrn kkrr kkrs kksi kksn kksr kkss kkys kkyy knbb knbn knbr knby knib knik knin knir knis knki knkk knnb knnk knnr knns knrb knrk knrs knry knsb knsi knsk knsn knsr knss knsy knyk knyn knyr krbb krbi krbk krbr krib krik krin kris krki krkk krkn krkr krks krky krnb krni krnk krnn krny krrb krri krrk krrn krrr krrs krry krsk krsn krsr krss krsy kryk kryn kryy ksbi ksbn ksbr ksbs ksby ksib ksii ksik ksir ksis ksiy kskb kskk kskn kskr ksks ksky ksnb ksnk ksnn ksnr ksns ksny ksrb ksrn ksrr ksrs ksry kssi kssn kssr ksss ksyn ksyr ksyy kybb kybi kybr kyby kyis kykk kykn kykr kyks kyky kynr kyns kyrk kyrn kyrs kysk kysn kysr kyyi kyyk kyys kyyy n-ii nibi nibs niir niki niks niky nini nins nirs nisi niss niyi nnnn nnss nsin nsis nskk nsnr nssb nssr nsss nyny nyrb nyss rbbb rbbr rbbs rbis rbss rib- ribs riby riin riis riki rikk rink rinn riny riri rirs risi risk riss rkss rnbr rnin rrrr rsbi rsis rsnn rsnr ryis ryki rynn rysy s-ib s-ii sbbs sbrk sbsi sibi sibs siby siik siki sikr siks sini sink sinn sins siny siri sirk sirr sirs sisi sisk siss sisy siyi skik skin skir skis skn- skss sky- skyn skyr skys skyy snib snir snns snrk snrs snsy snys srby srib sris srni srnn ssbn ssbr ssby ssin ssis ssns ssri ssrs sssb sssi ssss syik syis syn- synk syns syny syrs syry syss syyk ybbs ybry yins yirb yirk yirn yirr yisk yiss ynkb yrin yryn ysby ysii ysyb yyyy