bbb bbi bbk bbn bbo bbr bbs bbt bi- bib bii bik bin bio bir bis bit bkb bkk bkn bko bkr bks bkt bnb bni bnk bnn bno bnr bns bnt bob boi bok bon boo bor bos bot brb bri brk brn bro brr brs brt bsb bsi bsk bsn bso bsr bss bst btb bti btk btn bto btr bts btt ibb ibi ibk ibn ibo ibr ibs ibt iib iii iin iio iir iis iit ikb iki ikk iko ikr iks ikt in- inb ini ink inn ino inr ins int io- iob ioi ion ioo ior ios iot ir- irb iri irk irn iro irr irs irt is- isb isi isk isn iso isr iss ist itb iti itk itn ito its itt k-t kbb kbi kbk kbn kbo kbr kbs kib kii kik kin kio kir kis kit kkb kki kkk kkn kkr kks kkt kn- kni knk knn kno knr knt kob koi kok kon koo kor kos kot kri krk krn kro krr krs krt ksb ksi ksk ksn kso ksr kss kst ktb ktk ktn kto ktr kts ktt n-i nbb nbi nbk nbn nbo nbr nbs nbt nib nii nik nin nio nir nis nit nki nkk nkn nko nkr nks nkt nnb nni nnk nnn nno nns nnt no- nob noi nok non noo nor nos not nrb nri nrk nrn nro nrr nrs nrt nsb nsi nsk nsn nso nsr nss nst ntb nti ntk ntn nto ntr nts ntt o-i ob- obb obi obk obn obo obr obs obt oib oii oik oin oio oir ois oit okb oki okk oko okr oks on- onb oni onk onn ono onr ons ont oo- oob ooi ook oon ooo oor oos oot or- orb ori ork orn oro orr ors ort os- osb osi osk osn oso osr oss ost ot- otb oti otk otn oto otr ots ott rbb rbi rbk rbn rbo rbr rbs rbt rib rii rik rin rio rir ris rit rkb rkk rko rks rkt rnb rni rnn rno rnr rns rnt rob roi rok ron roo ror ros rot rrb rri rrk rrn rrr rrs rrt rsb rsi rsk rsn rso rsr rss rst rtb rti rtk rtn rto rtr rts rtt sbb sbi sbk sbn sbo sbr sbs sbt sib sii sik sin sio sir sis sit sk- skb ski skk sko skr sks skt snb sni snk snn sno snr sns snt sob soi sok son soo sor sos sot sr- srb sri srk srn sro srr srs srt ss- ssb ssi ssk ssn sso ssr sss sst stb sti stk stn sto str sts stt tbb tbi tbk tbn tbo tbr tbs tbt tib tii tik tin tio tir tis tit tkb tkk tko tkr tks tkt tnb tni tnk tnn tno tnr tns tnt to- tob toi tok ton too tor tos tot trb tri trk trn tro trr trs trt tsb tsi tsk tsn tso tsr tss tst ttb tti ttk ttn tto ttr tts ttt

-nik bbbb bbbs bbin bibb bibi bibo bibs biin biis biko bin- bini bink binn bino bins bint bio- bioi bion bios biot birb biri birk birn biro birr birs birt bis- bisk biso biss bist bito bits bitt bnib bnin bnor bnrr bnss bobb bobi bobo bobs boi- boii boin bois boit boki bokn boko boks boni bonk bonn bono bons bont boob book boon boor boos boot bor- bori bork born boro borr bors bort bosi bosk bosn boso boss bost botb boti botn boto bots bott brik brin brio bris brit brkb brno brns brob brok bron broo bror bros brot brrr brrs brsb brsr brst bsin bskt bsns bson bsos bsts btob btor btrt btss bttb i-no ibis ibns ibon ibos ibot ibri ibro ibsn ibss ibtb ibts iiii iiio iiis iiit iino iioi iioo iios iirs iisi iisr iist iitr iitt ikin ikki ikko ikon ikoo ikri inbo inis init inki inks inni inno innr inns ino- inoi inon inor inos inot inri inro inrs inso inss inst inti intn into intr ints iobi ioii ioio ioit ioko ioni ionn iono ions iooi iooo ioos iori iors ioso ioto iri- irin irio iris irki irks irob iron irri irrs irti irts isbn isbt isin isis isit isko isno isnt iso- isok ison isor isos isri issi isso issr isss isti isto istr ists itbs itin itis itko itno itoi iton itoo itor itos itri itrs itsi itso itto k-os kbbb kbbi kbbk kbbo kbbr kbbs kbbt kbib kbik kbio kbis kbit kbkb kbkk kbko kbkr kbnn kbno kbnr kbob kboi kbok kbon kboo kbos kbot kbrb kbri kbrk kbrn kbro kbrt kbsb kbsi kbsk kbsn kbso kbsr kbss kbst kbtb kbtk kbtn kbto kbtr kbts kbtt kibb kibi kibo kibr kibs kibt kiii kiik kiis kiit kiki kikk kiko kikr kikt kin- kinb kini kink kinn kino kins kint kioi kiok kion kioo kiot kirb kiri kirk kirn kiro kirr kirs kirt kisi kisk kisn kiso kisr kiss kist kiti kitn kito kitr kits kitt kkbb kkbi kkbn kkbo kkbr kkbs kkbt kkik kkin kkit kkkk kknb kkni kknn kkno kkns kknt kkob kkon kkoo kkor kkot kkrb kkrk kkrn kkro kkrr kkrs kkrt kksi kksn kksr kkss kkst kktk kkts knbb knbn knbr knbt knib knik knin knir knis knit knki knkk knkt knnb knnk knnr knns knob knok knon knor knot knrb knrk knro knrs knsb knsi knsk knsn knso knsr knss knst knti kntk kntn knto kntr knts kobb kobi kobk kobn kobo kobr kobs koii koin koir koit kokb koki kokk kokn koko kokr koks koni konk kono kont koob kooi kook koon kooo koor koos koot korb kori kork korn koro korr kors kort kos- kosb kosi koso kosr koss kost kotb koti kotk kotn koto kotr kots kott krbb krbi krbk krbr krbt krib krik krin krio kris krit krki krkk krkn krko krkr krks krnb krni krnk krnn krno