-ic b-u bbb bbc bbi bbk bbn bbo bbr bbu bcb bcc bci bck bcn bco bcr bcu bi- bib bic bii bik bin bio bir biu bkb bkc bkk bkn bko bkr bnb bnc bni bnk bnn bno bnr bnu bob boc boi bok bon boo bor bou brb bri brk brn bro brr bru bub buc bui buk bun buo bur buu c-- cbb cbc cbi cbk cbn cbo cbr cbu ccb ccc cci cck ccn cco ccr ccu ci- cib cic cii cik cin cio cir ciu ckb ckc cki cko cn- cnb cnc cni cnn cno cnr cnu co- cob coc coi cok con coo cor cou crb crc cri crk crn cro crr cru cub cuc cui cuk cun cuo cur cuu ibb ibc ibi ibk ibn ibo ibr ibu icb icc ici ick icn ico icr icu iib iic iii iin iio iir iiu ikb ikc iki ikk iko ikr iku in- inb inc ini ink inn ino inr inu io- iob ioc ioi ion ioo ior iou ir- irb irc iri irk irn iro irr iru iu- iub iuc iui iur kbb kbc kbi kbk kbn kbo kbr kbu kcb kcc kci kck kcn kcr kcu kib kic kii kik kin kio kir kiu kkb kkc kki kkk kkn kkr kku kn- knc kni knk knn kno knr knu kob koc koi kok kon koo kor kou krc kri krk krn kro krr kru kub kuc kui kuk kun kur kuu n-i nbb nbc nbi nbk nbn nbo nbr nbu ncb ncc nci nck ncn nco ncr ncu nib nic nii nik nin nio nir niu nkc nki nkk nkn nko nkr nku nnb nnc nni nnk nnn nno nnu no- nob noc noi nok non noo nor nou nrb nrc nri nrk nrn nro nrr nru nub nuc nui nuk nun nuo nur nuu o-i ob- obb obc obi obk obn obo obr obu oc- ocb occ oci ock ocn oco ocr ocu oib oic oii oik oin oio oir oiu okb okc oki okk oko okr oku on- onb onc oni onk onn ono onr onu oo- oob ooc ooi ook oon ooo oor or- orb orc ori ork orn oro orr oru ou- ouc oui ouk oun ouo our rbb rbc rbi rbk rbn rbo rbr rbu rcb rcc rci rcn rco rcr rcu rib ric rii rik rin rio rir rkb rkc rkk rko rku rnb rnc rni rnn rno rnr rnu rob roc roi rok ron roo ror rou rrb rrc rri rrk rrn rrr rru rub ruc rui ruk run ruo rur ruu ubb ubc ubi ubk ubn ubo ubr ubu ucb ucc uci uck ucn uco ucr ucu uib uic uii uin uio uir uiu ukb ukc uki ukk ukn ukr uku un- unb unc uni unk unn uno unr unu uob uoc uok uon uoo uor ur- urb urc uri urk urn uro urr uru uuc uun uur uuu

-nik bbbb bbci bbin bbrc bcbc bccc bcci bcnu bcor bcru bcuc bibb bibi bibo bicc bici bick bico biin biko biku bin- binc bini bink binn bino binu bio- bioc bioi bion biou birb biri birk birn biro birr biru bnib bnin bnoc bnor bnrr bobb bobi bobo bobu bock boco bocu boi- boii boin boiu boki bokn boko boku bonc boni bonk bonn bono bonu boob booc book boon boor bor- bori bork born boro borr boru bouk boun bour brcb bric brik brin brio brkb brno brob broc brok bron broo bror brou brrr bruc brun bubb bubi bubo bubu bucc buci buck buco bucu buic buik buin buir buiu buki bukk buko buku bunb buni bunk bunn buno bunu buon bur- burb buri burk burn buro burr buru c-bo cbbc cbcc cbcn cbcr cbcu cbir cbkn cbko cbkr cbrn ccbc ccbn cccb cccc ccci cccu ccic ccii ccir ccnb ccnc ccni ccnr ccnu ccob ccoc ccrc ccri ccuc cibc cibi cibo cicc cici cico cicr cicu ciii ciko cikr cin- cinc cini cink cino ciob cion cior cirb circ ciri cirk ciro cirr ciuc ckbc ckbi ckck ckco ckin cknb cknc ckob ckoc ckoi ckoo ckor ckrc cnbc cnci cnco cnib cnic cnki cnrc cnrr cobb cobi cobo cobu cock coco cocu coin coir cok- coko con- conc coni conk conn cono coob cook coon cor- corb corc cori cork corn coro corr coub couk coun cour crbc crbu crcc crcr crib cric crik crin criu crkc crob croc crok cron croo cror crub cruk crun cub- cubb cubi cucc cuci cuck cucn cui- cuin cuir cuk- cuno cuon curb curi curn curo curr i-no ibon ibrc ibri ibro icbc iccb iccc icci iccn icco iccr iccu icnb icnc icoc icon icor icrc icrr icru icub iiii iiio iino iioi iioo iirc iiuc ikin ikki ikko ikon ikoo ikri ikuo inbo incb inci inco incr inki inni inno innr innu ino- inoi inon inor inou inri inro inui inuk inun iobi ioci ioii ioio ioko ioni ionn iono iooi iooo iori ioun ircc ircu iri- iric irin irio irki irob iroc iron irrc irri irun iucc iuiu iuno k-ci kbbb kbbc kbbi kbbk kbbo kbbr kbbu kbcb kbci kbck kbco kbcr kbcu kbib kbic kbik kbio kbiu kbkb kbkk kbko kbkr kbnn kbno kbnr kbnu kbob kboc kboi kbok kbon kboo kbrb kbrc kbri kbrk kbrn kbro 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 kcko kckr kcnb kcni kcno kcnr kcob kcon kcor kcou kcrc kcri kcrn kcro kcrr kcru kcub kcui kcuk kibb kibc kibi kibo kibr kibu kicb kicc kick kicr kiic kiii kiik kiiu kikc kiki kikk kiko kikr kiku kin- kinb kinc kini kink kinn kino kinu kioc kioi kiok kion kioo kiou kirb kirc kiri kirk kirn kiro kirr kiru kiun kiur kiuu kkbb kkbi kkbn kkbo kkbr kkcb kkci kkck kkcn kkco kkcr kkic kkik kkin kkkk