bbb bbd bbi bbk bbn bbo bbr bbs bdb bdd bdi bdk bdo bdr bds bi- bib bid bii bik bin bio bir bis bkb bkk bkn bko bkr bks bnb bnd bni bnk bnn bno bnr bns bob bod boi bok bon boo bor bos brb brd bri brk brn bro brr brs bsb bsd bsi bsk bsn bso bsr bss dbb dbd dbi dbk dbn dbo dbr dbs ddb ddd ddi ddk ddn ddo ddr dds di- dib did dii dik din dio dir dis dkb dki dkk dko dkr dks dnb dnd dni dnk dnn dno dnr dns dob dod doi dok don doo dor dos drb drd dri drk drn dro drr drs dsb dsd dsi dsk dsn dso dsr dss i-d ibb ibd ibi ibk ibn ibo ibr ibs idb idd idi idk idn ido idr ids iib iid iii iin iio iir iis ikb iki ikk iko ikr iks in- inb ind ini ink inn ino inr ins io- iob iod ioi ion ioo ior ios ir- irb ird iri irk irn iro irr irs is- isb isd isi isk isn iso isr iss kbb kbd kbi kbk kbn kbo kbr kbs kdb kdk kdo kdr kds kib kid kii kik kin kio kir kis kkb kki kkk kkn kkr kks kn- knd kni knk knn kno knr kob kod koi kok kon koo kor kos krd kri krk krn kro krr krs ksb ksd ksi ksk ksn kso ksr kss n-i nbb nbd nbi nbk nbn nbo nbr nbs ndb ndd ndi ndk ndn ndo ndr nds nib nid nii nik nin nio nir nis nki nkk nkn nko nkr nks nnb nni nnk nnn nno nns no- nob nod noi nok non noo nor nos nrb nrd nri nrk nrn nro nrr nrs nsb nsd nsi nsk nsn nso nsr nss o-i ob- obb obd obi obk obn obo obr obs odb odd odi odn odo odr ods oib oid oii oik oin oio oir ois okb okd oki okk oko okr oks on- onb ond oni onk onn ono onr ons oo- oob ood ooi ook oon ooo oor oos or- orb ord ori ork orn oro orr ors os- osb osd osi osk osn oso osr oss rbb rbd rbi rbk rbn rbo rbr rbs rdb rdd rdi rdn rdo rdr rds rib rid rii rik rin rio rir ris rkb rkk rko rks rnb rnd rni rnn rno rnr rns rob rod roi rok ron roo ror ros rrb rrd rri rrk rrn rrr rrs rsb rsd rsi rsk rsn rso rsr rss sbb sbd sbi sbk sbn sbo sbr sbs sdb sdd sdi sdk sdn sdo sdr sds sib sid sii sik sin sio sir sis sk- skb skd ski skk sko skr sks snb snd sni snk snn sno snr sns sob sod soi sok son soo sor sos sr- srb srd sri srk srn sro srr srs ss- ssb ssd ssi ssk ssn sso ssr sss