bbb bbg bbi bbk bbn bbo bbr bbs bgb bgg bgi bgk bgn bgo bgr bgs bi- bib big bii bik bin bio bir bis bkb bkg bkk bkn bko bkr bks bnb bng bni bnk bnn bno bnr bns bob bog boi bok bon boo bor bos brb brg bri brk brn bro brr brs bsb bsg bsi bsk bsn bso bsr bss gbg gbi gbk gbn gbo gbr gbs ggb ggg ggi ggn ggo ggr ggs gib gig gii gik gin gio gir gis gkb gkn gko gks gnb gni gnn gno gnr gns gob gog goi gok gon goo gor gos grb grg gri grk grn gro grr grs gsb gsg gsi gsk gsn gso gsr gss ibb ibg ibi ibk ibn ibo ibr ibs igb igg igi igk ign igo igr igs iib iii iin iio iir iis ikb iki ikk iko ikr iks in- inb ing ini ink inn ino inr ins io- iob iog ioi ion ioo ior ios ir- irb irg iri irk irn iro irr irs is- isb isg isi isk isn iso isr iss kbb kbi kbk kbn kbo kbr kbs kgb kgi kgo kgs kib kig kii kik kin kio kir kis kkb kki kkk kkn kkr kks kn- kng kni knk knn kno knr kob kog koi kok kon koo kor kos krg kri krk krn kro krr krs ksb ksg ksi ksk ksn kso ksr kss n-i nbb nbg nbi nbk nbn nbo nbr nbs ngb ngg ngi ngk ngn ngo ngs nib nig nii nik nin nio nir nis nki nkk nkn nko nkr nks nnb nng nni nnk nnn nno nns no- nob nog noi nok non noo nor nos nrb nrg nri nrk nrn nro nrr nrs nsb nsg nsi nsk nsn nso nsr nss o-i ob- obb obg obi obk obn obo obr obs ogg ogi ogn ogo ogs oib oii oik oin oio oir ois okb okg oki okk oko okr oks on- onb ong oni onk onn ono onr ons oo- oob oog ooi ook oon ooo oor oos or- orb org ori ork orn oro orr ors os- osb osg osi osk osn oso osr oss rbb rbg rbi rbk rbn rbo rbr rbs rgb rgg rgi rgk rgn rgo rgr rgs rib rig rii rik rin rio rir ris rkb rkg rkk rko rks rnb rng rni rnn rno rnr rns rob rog roi rok ron roo ror ros rrb rrg rri rrk rrn rrr rrs rsb rsg rsi rsk rsn rso rsr rss sbb sbg sbi sbk sbn sbo sbr sbs sgb sgg sgi sgk sgn sgo sgr sgs sib sig sii sik sin sio sir sis sk- skb skg ski skk sko skr sks snb sng sni snk snn sno snr sns sob sog soi sok son soo sor sos sr- srb srg sri srk srn sro srr srs ss- ssb ssg ssi ssk ssn sso ssr sss