bbb bbd bbi bbl bbn bbs bdb bdd bdi bdl bds bi- bib bid bii bil bin bis blb bld bli bll bln bls bnb bnd bni bnl bnn bns bsb bsd bsi bsl bsn bss dbb dbd dbi dbl dbn dbs ddb ddd ddi ddl ddn dds di- dib did dii dil din dis dl- dlb dld dli dll dls dnb dnd dni dnl dnn dns dsb dsd dsi dsl dsn dss i-d ibb ibd ibi ibl ibn ibs idb idd idi idl idn ids iib iid iii iil iin iis il- ilb ild ili ill iln ils in- inb ind ini inl inn ins is- isb isd isi isl isn iss lbb lbd lbi lbl lbs ldb ldd ldi ldl ldn lds lib lid lii lil lin lis llb lld lli lll lln lls lnb lnd lni lnl lnn lns lsb lsd lsi lsl lsn lss n-i nbb nbd nbi nbl nbn nbs ndb ndd ndi ndl ndn nds nib nid nii nil nin nis nlb nld nli nll nln nls nnb nni nnl nnn nns nsb nsd nsi nsl nsn nss sbb sbd sbi sbl sbn sbs sdb sdd sdi sdl sdn sds sib sid sii sil sin sis slb sld sli sll sln sls snb snd sni snl snn sns ss- ssb ssd ssi ssl ssn sss