bbbb bbbs bblb bbls bibb bibi bibl bibs biis bili bilk bill bils bily birb biri birk birl birr birs biry bis- bisk bisl biss bisy biys bkry blik blir blis blkb blls blss bly- blyk blys brik bril bris brkb brls brrr brrs brsb brsr bry- bryk byik byil byki byrk bysb bysi bysl byss bysy i-by ibis ibly ibri ibss ibyi iiii iiis iirs iisi iisr ikki ikky ikri ikyl ilir ilis ilki ilks ill- illi ills illy irby iri- iril iris iriy irki irks irlb irri irrs isbl isil isis isls isly isri issi issr isss issy isyl isys kbbb kbbi kbbk kbbl kbbr kbbs kbib kbik kbil kbis kbiy kbkb kbkk kbkl kbkr kbky kblb kbll kblr kbls kbrb kbri kbrk kbrl kbry kbsb kbsi kbsk kbsr kbss kbsy kbyb kbyi kbyr kbys kibb kibi kibl kibr kibs kiby kiii kiik kiis kiki kikk kikr kilb kili kilk kill kilr kirb kiri kirk kirr kirs kisi kisk kisl kisr kiss kisy kiyi kiyk kiys kkbb kkbi kkbl kkbr kkbs kkik kkkk kklb kkli kkll kkls kkrb kkrk kkrl kkrr kkrs kksi kksr kkss kkys kkyy klbb klbl klbs klib klik klil klir klis klkk klkl klkr klks klky kllb kllk klls klly klrk klrr klrs klsi klsr klsy klyk klyr klyy krbb krbi krbk krbl krbr krib krik kril kris krki krkk krkr krks krky krrb krri krrk krrl krrr krrs krry krsk krsl krsr krss krsy kryk kryl kryy ksbi ksbl ksbr ksbs ksby ksib ksii ksik ksil ksir ksis ksiy kskb kskk kskr ksks ksky kslb ksli kslk ksll kslr ksrb ksrr ksrs ksry kssi kssl kssr ksss ksyl ksyr ksyy kybb kybi kybr kyby kyis kykk kykr kyks kyky kyli kyll kyls kyrk kyrs kysk kysl kysr kyyi kyyk kyys kyyy lblr lbrs libr libs liii liir liis lilb lili lill lils lily liri lirk lirl lirr lirs liry lisi lisk liss lisy liyl lkrs llbs llks llll llyr lrrr lrry ls-r lssr lyik lyly lys- lysi lysl lyss rbbb rbbr rbbs rbis rbsl rbss rib- ribs riby riis riki rikk rill rily riri rirs risi risk riss rkss rlls rlys rrrr rsbi rsis rssl ryis ryki rysy s-ib s-ii sbbs sbrk sbsi sibi sibs siby siik siki sikr siks sil- sili silk sill sils siri sirk sirr sirs sisi sisk siss sisy siyi skik skil skir skis skss sky- skyr skys skyy sl-i slib slik slir slrs slys srby srib sris ssbr ssby ssis ssri ssrl ssrs sssb sssi ssss syik syis syl- syli sylk syll syls syrs syry syss syyk ybbs ybry yili yill yirb yirk yirr yisk yiss ylli ylls ylyk yrly ysby ysii ysyb yyyy