bbb bbd bbi bbl bbn bbs bbt bdb bdd bdi bdl bds bdt bi- bib bid bii bil bin bis bit blb bld bli bll bln bls blt bnb bnd bni bnl bnn bns bnt bsb bsd bsi bsl bsn bss bst btb btd bti btl btn bts btt dbb dbd dbi dbl dbn dbs dbt ddb ddd ddi ddl ddn dds ddt di- dib did dii dil din dis dit dl- dlb dld dli dll dls dlt dnb dnd dni dnl dnn dns dnt dsb dsd dsi dsl dsn dss dst dtb dtd dti dtl dtn dts dtt i-d ibb ibd ibi ibl ibn ibs ibt idb idd idi idl idn ids idt iib iid iii iil iin iis iit il- ilb ild ili ill iln ils ilt in- inb ind ini inl inn ins int is- isb isd isi isl isn iss ist itb itd iti itl itn its itt lbb lbd lbi lbl lbs lbt ldb ldd ldi ldl ldn lds ldt lib lid lii lil lin lis lit llb lld lli lll lln lls llt lnb lnd lni lnl lnn lns lnt lsb lsd lsi lsl lsn lss lst ltb ltd lti ltl lts ltt n-i nbb nbd nbi nbl nbn nbs nbt ndb ndd ndi ndl ndn nds ndt nib nid nii nil nin nis nit nlb nld nli nll nln nls nlt nnb nni nnl nnn nns nnt nsb nsd nsi nsl nsn nss nst ntb ntd nti ntn nts ntt sbb sbd sbi sbl sbn sbs sbt sdb sdd sdi sdl sdn sds sdt sib sid sii sil sin sis sit slb sld sli sll sln sls slt snb snd sni snl snn sns snt ss- ssb ssd ssi ssl ssn sss sst stb std sti stl stn sts stt tbb tbd tbi tbl tbn tbs tbt tdb tdd tdi tdl tdn tds tdt tib tid tii til tin tis tit tld tli tll tln tls tlt tnb tnd tni tnl tnn tns tnt tsb tsd tsi tsl tsn tss tst ttb ttd tti ttl ttn tts ttt