-nik bbbb bbci bbin bbrc bcbc bccc bcci bcnu bcru bcuc bibb bibi bicc bici bick biin biku bin- binc bini bink binn binu birb biri birk birn birr biru bnib bnin bnrr brcb bric brik brin brkb brrr bruc brun bubb bubi bubu bucc buci buck bucu buic buik buin buir buiu buki bukk buku bunb buni bunk bunn bunu bur- burb buri burk burn burr buru cbbc cbcc cbcn cbcr cbcu cbir cbkn cbkr cbrn ccbc ccbn cccb cccc ccci cccu ccic ccii ccir ccnb ccnc ccni ccnr ccnu ccrc ccri ccuc cibc cibi cicc cici cicr cicu ciii cikr cin- cinc cini cink cirb circ ciri cirk cirr ciuc ckbc ckbi ckck ckin cknb cknc ckrc cnbc cnci cnib cnic cnki cnrc cnrr crbc crbu crcc crcr crib cric crik crin criu crkc crub cruk crun cub- cubb cubi cucc cuci cuck cucn cui- cuin cuir cuk- curb curi curn curr ibrc ibri icbc iccb iccc icci iccn iccr iccu icnb icnc icrc icrr icru icub iiii iirc iiuc ikin ikki ikri incb inci incr inki inni innr innu inri inui inuk inun ircc ircu iri- iric irin irki irrc irri irun iucc iuiu k-ci kbbb kbbc kbbi kbbk kbbr kbbu kbcb kbci kbck kbcr kbcu kbib kbic kbik kbiu kbkb kbkk kbkr kbnn kbnr kbnu kbrb kbrc kbri kbrk kbrn kbru kbub kbuc kbuk kbun kbur kbuu kcbc kcbi kcbk kcbr kcbu kccb kccc kcci kcck kccr kccu kcic kcii kcin kcir kciu kckc kckk kckn kckr kcnb kcni kcnr kcrc kcri kcrn kcrr kcru kcub kcui kcuk kibb kibc kibi kibr kibu kicb kicc kick kicr kiic kiii kiik kiiu kikc kiki kikk kikr kiku kin- kinb kinc kini kink kinn kinu kirb kirc kiri kirk kirn kirr kiru kiun kiur kiuu kkbb kkbi kkbn kkbr kkcb kkci kkck kkcn kkcr kkic kkik kkin kkkk kknb kkni kknn kknu kkrb kkrc kkrk kkrn kkrr kkuu knbb knbc knbn knbr knbu kncb knci knck kncn kncr kncu knib knic knik knin knir knki knkk knnb knnk knnr knrb knrk knub knui knuk knur krbb krbi krbk krbr krcb krcc krci krcn krcu krib krik krin krkc krki krkk krkn krkr krku krnb krni krnk krnn krnu krrb krrc krri krrk krrn krrr kruc krui kruk krun krur kubb kubc kubr kubu kucb kucc kuci kucr kuic kuik kuin kuki kukk kukn kuku kunc kuni kunk kunr kunu kurb kuri kurk kurr kuru kuub kuuk kuur kuuu n-ii nbbc nbcc nbci nbic ncbc ncbi nccc ncci nccn nccr nccu ncnc ncrc ncri ncuk nibi nicc nici nick nicu niir niiu nikc niki niku nini niru niur nnnn nric nrrc nubc nubi nubk nuci nuck nucu nuik nuin nuki nuku nunc nunk nunn nurc nuri nurn nurr nuru nuuk rbbb rbbr rcbc rccb rccc rcic rcnr rib- ribu ricc rick riin riki rikk riku rink rinn riri rnbr rnin rrrr rrun rubb rubi rubu ruci ruck ruin ruki rukk rukn ruku runc runi runk runn rurc ruri ruru ruun ubbi ubic ubii ubik ubir ucbc ucci ucin ucrc uirr ukcc uknc ukrc ukur uncc unci uni- unic unii unik unin unir unkn unni urbi urci urib uric urik urin uriu urni urri uruk urun urur uuni uuri uuuu