bbb bbi bbk bbn bbo bbr bbs bi- bib bii bik bin bio bir bis bkb bkk bkn bko bkr bks bnb bni bnk bnn bno bnr bns bob boi bok bon boo bor bos brb bri brk brn bro brr brs bsb bsi bsk bsn bso bsr bss ibb ibi ibk ibn ibo ibr ibs iib iii iin iio iir iis ikb iki ikk iko ikr iks in- inb ini ink inn ino inr ins io- iob ioi ion ioo ior ios ir- irb iri irk irn iro irr irs is- isb isi isk isn iso isr iss kbb kbi kbk kbn kbo kbr kbs kib kii kik kin kio kir kis kkb kki kkk kkn kkr kks kn- kni knk knn kno knr kob koi kok kon koo kor kos kri krk krn kro krr krs ksb ksi ksk ksn kso ksr kss n-i nbb nbi nbk nbn nbo nbr nbs nib nii nik nin nio nir nis nki nkk nkn nko nkr nks nnb nni nnk nnn nno nns no- nob noi nok non noo nor nos nrb nri nrk nrn nro nrr nrs nsb nsi nsk nsn nso nsr nss o-i ob- obb obi obk obn obo obr obs oib oii oik oin oio oir ois okb oki okk oko okr oks on- onb oni onk onn ono onr ons oo- oob ooi ook oon ooo oor oos or- orb ori ork orn oro orr ors os- osb osi osk osn oso osr oss rbb rbi rbk rbn rbo rbr rbs rib rii rik rin rio rir ris rkb rkk rko rks rnb rni rnn rno rnr rns rob roi rok ron roo ror ros rrb rri rrk rrn rrr rrs rsb rsi rsk rsn rso rsr rss sbb sbi sbk sbn sbo sbr sbs sib sii sik sin sio sir sis sk- skb ski skk sko skr sks snb sni snk snn sno snr sns sob soi sok son soo sor sos sr- srb sri srk srn sro srr srs ss- ssb ssi ssk ssn sso ssr sss

-nik bbbb bbbs bbin bibb bibi bibo bibs biin biis biko bin- bini bink binn bino bins bio- bioi bion bios birb biri birk birn biro birr birs bis- bisk biso biss bnib bnin bnor bnrr bnss bobb bobi bobo bobs boi- boii boin bois boki bokn boko boks boni bonk bonn bono bons boob book boon boor boos bor- bori bork born boro borr bors bosi bosk bosn boso boss brik brin brio bris brkb brno brns brob brok bron broo bror bros brrr brrs brsb brsr bsin bsns bson bsos i-no ibis ibns ibon ibos ibri ibro ibsn ibss iiii iiio iiis iino iioi iioo iios iirs iisi iisr ikin ikki ikko ikon ikoo ikri inbo inis inki inks inni inno innr inns ino- inoi inon inor inos inri inro inrs inso inss iobi ioii ioio ioko ioni ionn iono ions iooi iooo ioos iori iors ioso iri- irin irio iris irki irks irob iron irri irrs isbn isin isis isko isno iso- isok ison isor isos isri issi isso issr isss k-os kbbb kbbi kbbk kbbo kbbr kbbs kbib kbik kbio kbis kbkb kbkk kbko kbkr kbnn kbno kbnr kbob kboi kbok kbon kboo kbos kbrb kbri kbrk kbrn kbro kbsb kbsi kbsk kbsn kbso kbsr kbss kibb kibi kibo kibr kibs kiii kiik kiis kiki kikk kiko kikr kin- kinb kini kink kinn kino kins kioi kiok kion kioo kirb kiri kirk kirn kiro kirr kirs kisi kisk kisn kiso kisr kiss kkbb kkbi kkbn kkbo kkbr kkbs kkik kkin kkkk kknb kkni kknn kkno kkns kkob kkon kkoo kkor kkrb kkrk kkrn kkro kkrr kkrs kksi kksn kksr kkss knbb knbn knbr knib knik knin knir knis knki knkk knnb knnk knnr knns knob knok knon knor knrb knrk knro knrs knsb knsi knsk knsn knso knsr knss kobb kobi kobk kobn kobo kobr kobs koii koin koir kokb koki kokk kokn koko kokr koks koni konk kono koob kooi kook koon kooo koor koos korb kori kork korn koro korr kors kos- kosb kosi koso kosr koss krbb krbi krbk krbr krib krik krin krio kris krki krkk krkn krko krkr krks krnb krni krnk krnn krno krob kroi krok kroo kror kros krrb krri krrk krrn krro krrr krrs krsk krsn krsr krss ksbi ksbn ksbr ksbs ksib ksii ksik ksir ksis kskb kskk kskn ksko kskr ksks ksnb ksnk ksnn ksnr ksns ksob ksoi ksok kson ksoo ksor ksos ksrb ksrn ksro ksrr ksrs kssi kssn ksso kssr ksss n-ii nbbo nibi nibo nibs niir niki niko niks nini nino nins nion nioo nios niro nirs nisi niso niss nkio nkok nkor nnnn nnos nnss nobi nobo nobs noib noik noin noio noir nois noki noko non- noni nonn nono nons noo- noob nook noon nooo noor noos nor- norb nori nork norn noro norr nors nos- nosk noss nron nsbo nsin nsis nskk nsnr nsok nsos nssb nsso nssr nsss obbo obin obis obkb oboi obok obon obor obos obri obro obsn obsr obss oiii oiko oiks oink oins oion oios okir okko okni okno okok okon okor okro oksi okso onir onis onni onno onon onor onos onso oobi oons oooo ooos oosi orbb orbi orbo orbs ori- orin orio oris orko orni orno orns oro- orok oron oror oros orri orro orrs orsi orsk orso osii osik osin osis oski osno osnr osoi osoo osor osos osro ossb ossi osso rbbb rbbr rbbs rbis rbss rib- ribo ribs riin riis riki rikk rink rinn rino rion rios riri rirs risi risk riso riss rkos rkss rnbr rnin rob- robb robi robo robs roik roin roio roir rois roki rokk roko rokr roks roni ronk rono rons roob rooi rook roon roor roos rori rork roro rosi roso ross rrrr rsbi rsis rsnn rsno rsnr rsos s-ib s-ii s-os sbbs sbor sbrk sbsi sibi sibo sibs siik siki siko sikr siks sini sink sinn sino sins sion