bbb bbi bbk bbn bbo bbr bbs bbt bby bi- bib bii bik bin bio bir bis bit biy bkb bkk bkn bko bkr bks bkt bnb bni bnk bnn bno bnr bns bnt bob boi bok bon boo bor bos bot boy brb bri brk brn bro brr brs brt bry bsb bsi bsk bsn bso bsr bss bst bsy btb bti btk btn bto btr bts btt bty by- byi byk byn byo byr bys byt ibb ibi ibk ibn ibo ibr ibs ibt iby iib iii iin iio iir iis iit ikb iki ikk iko ikr iks ikt in- inb ini ink inn ino inr ins int iny io- iob ioi ion ioo ior ios iot ir- irb iri irk irn iro irr irs irt iry is- isb isi isk isn iso isr iss ist isy itb iti itk itn ito its itt ity iyo iyr iys iyt iyy k-t kbb kbi kbk kbn kbo kbr kbs kib kii kik kin kio kir kis kit kkb kki kkk kkn kkr kks kkt kky kn- kni knk knn kno knr knt kob koi kok kon koo kor kos kot koy kri krk krn kro krr krs krt kry ksb ksi ksk ksn kso ksr kss kst ktb ktk ktn kto ktr kts ktt kyn kyo kyr kys kyt 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 nky nnb nni nnk nnn nno nns nnt no- nob noi nok non noo nor nos not noy nrb nri nrk nrn nro nrr nrs nrt nry nsb nsi nsk nsn nso nsr nss nst nsy ntb nti ntk ntn nto ntr nts ntt nyk nyn nyo nys nyt nyy o-i ob- obb obi obk obn obo obr obs obt oby oib oii oik oin oio oir ois oit okb oki okk oko okr oks on- onb oni onk onn ono onr ons ont ony oo- oob ooi ook oon ooo oor oos oot or- orb ori ork orn oro orr ors ort ory os- osb osi osk osn oso osr oss ost ot- otb oti otk otn oto otr ots ott oyi oyo oys rbb rbi rbk rbn rbo rbr rbs rbt rib rii rik rin rio rir ris rit riy rkb rkk rko rks rkt rky rnb rni rnn rno rnr rns rnt rny rob roi rok ron roo ror ros rot roy rrb rri rrk rrn rrr rrs rrt rsb rsi rsk rsn rso rsr rss rst rtb rti rtk rtn rto rtr rts rtt rty ry- ryk ryn ryo ryr rys ryy sbb sbi sbk sbn sbo sbr sbs sbt sby sib sii sik sin sio sir sis sit sk- skb ski skk sko skr sks skt sky snb sni snk snn sno snr sns snt sny sob soi sok son soo sor sos sot soy sr- srb sri srk srn sro srr srs srt sry ss- ssb ssi ssk ssn sso ssr sss sst stb sti stk stn sto str sts stt sty sy- syb syi syk syn syr sys syt tbb tbi tbk tbn tbo tbr tbs tbt tib tii tik tin tio tir tis tit tiy tkb tkk tko tkr tks tkt tky tnb tni tnk tnn tno tnr tns tnt to- tob toi tok ton too tor tos tot toy trb tri trk trn tro trr trs trt try tsb tsi tsk tsn tso tsr tss tst tsy ttb tti ttk ttn tto ttr tts ttt tty tyn tyo tyr tys tyt ybi ybr ybs yby yii yin yio yir yis yit yki ykk ykn ynk ynn yns yny yob yoi yok yon yoo yor yos yot yoy yrn yro yrs yrt ysb ysi ysk yso ysr yss yst ysy ytk ytn yto ytr yts ytt yyb yys yyt yyy