bbb bbi bbk bbn bbr bbs bby bi- bib bii bik bin bir bis biy bkb bkk bkn bkr bks bnb bni bnk bnn bnr bns brb bri brk brn brr brs bry bsb bsi bsk bsn bsr bss bsy by- byi byk byn byr bys ibb ibi ibk ibn ibr ibs iby iib iii iin iir iis ikb iki ikk ikr iks in- inb ini ink inn inr ins iny ir- irb iri irk irn irr irs iry is- isb isi isk isn isr iss isy iyr iys iyy kbb kbi kbk kbn kbr kbs kib kii kik kin kir kis kkb kki kkk kkn kkr kks kky kn- kni knk knn knr kri krk krn krr krs kry ksb ksi ksk ksn ksr kss kyn kyr kys n-i nbb nbi nbk nbn nbr nbs nib nii nik nin nir nis nki nkk nkn nkr nks nky nnb nni nnk nnn nns nrb nri nrk nrn nrr nrs nry nsb nsi nsk nsn nsr nss nsy nyk nyn nys nyy rbb rbi rbk rbn rbr rbs rib rii rik rin rir ris riy rkb rkk rks rky rnb rni rnn rnr rns rny rrb rri rrk rrn rrr rrs rsb rsi rsk rsn rsr rss ry- ryk ryn ryr rys ryy sbb sbi sbk sbn sbr sbs sby sib sii sik sin sir sis sk- skb ski skk skr sks sky snb sni snk snn snr sns sny sr- srb sri srk srn srr srs sry ss- ssb ssi ssk ssn ssr sss sy- syb syi syk syn syr sys ybi ybr ybs yby yii yin yir yis yki ykk ykn ynk ynn yns yny yrn yrs ysb ysi ysk ysr yss ysy yyb yys yyy