bbb bbd bbi bbk bbn bbo bbs bdb bdd bdi bdk bdo bds bi- bib bid bii bik bin bio bis bkb bkk bkn bko bks bnb bnd bni bnk bnn bno bns bob bod boi bok bon boo bos bsb bsd bsi bsk bsn bso bss dbb dbd dbi dbk dbn dbo dbs ddb ddd ddi ddk ddn ddo dds di- dib did dii dik din dio dis dkb dki dkk dko dks dnb dnd dni dnk dnn dno dns dob dod doi dok don doo dos dsb dsd dsi dsk dsn dso dss i-d ibb ibd ibi ibk ibn ibo ibs idb idd idi idk idn ido ids iib iid iii iin iio iis ikb iki ikk iko iks in- inb ind ini ink inn ino ins io- iob iod ioi ion ioo ios is- isb isd isi isk isn iso iss kbb kbd kbi kbk kbn kbo kbs kdb kdk kdo kds kib kid kii kik kin kio kis kkb kki kkk kkn kks kn- knd kni knk knn kno kob kod koi kok kon koo kos ksb ksd ksi ksk ksn kso kss n-i nbb nbd nbi nbk nbn nbo nbs ndb ndd ndi ndk ndn ndo nds nib nid nii nik nin nio nis nki nkk nkn nko nks nnb nni nnk nnn nno nns no- nob nod noi nok non noo nos nsb nsd nsi nsk nsn nso nss o-i ob- obb obd obi obk obn obo obs odb odd odi odn odo ods oib oid oii oik oin oio ois okb okd oki okk oko oks on- onb ond oni onk onn ono ons oo- oob ood ooi ook oon ooo oos os- osb osd osi osk osn oso oss sbb sbd sbi sbk sbn sbo sbs sdb sdd sdi sdk sdn sdo sds sib sid sii sik sin sio sis sk- skb skd ski skk sko sks snb snd sni snk snn sno sns sob sod soi sok son soo sos ss- ssb ssd ssi ssk ssn sso sss