bbb bbd bbi bbn bbo bbs bbt bdb bdd bdi bdo bds bdt bi- bib bid bii bin bio bis bit bnb bnd bni bnn bno bns bnt bob bod boi bon boo bos bot bsb bsd bsi bsn bso bss bst btb btd bti btn bto bts btt dbb dbd dbi dbn dbo dbs dbt ddb ddd ddi ddn ddo dds ddt di- dib did dii din dio dis dit dnb dnd dni dnn dno dns dnt dob dod doi don doo dos dot dsb dsd dsi dsn dso dss dst dtb dtd dti dtn dto dts dtt i-d ibb ibd ibi ibn ibo ibs ibt idb idd idi idn ido ids idt iib iid iii iin iio iis iit in- inb ind ini inn ino ins int io- iob iod ioi ion ioo ios iot is- isb isd isi isn iso iss ist itb itd iti itn ito its itt n-i nbb nbd nbi nbn nbo nbs nbt ndb ndd ndi ndn ndo nds ndt nib nid nii nin nio nis nit nnb nni nnn nno nns nnt no- nob nod noi non noo nos not nsb nsd nsi nsn nso nss nst ntb ntd nti ntn nto nts ntt o-i ob- obb obd obi obn obo obs obt odb odd odi odn odo ods odt oib oid oii oin oio ois oit on- onb ond oni onn ono ons ont oo- oob ood ooi oon ooo oos oot os- osb osd osi osn oso oss ost ot- otb otd oti otn oto ots ott sbb sbd sbi sbn sbo sbs sbt sdb sdd sdi sdn sdo sds sdt sib sid sii sin sio sis sit snb snd sni snn sno sns snt sob sod soi son soo sos sot ss- ssb ssd ssi ssn sso sss sst stb std sti stn sto sts stt tbb tbd tbi tbn tbo tbs tbt tdb tdd tdi tdn tdo tds tdt tib tid tii tin tio tis tit tnb tnd tni tnn tno tns tnt to- tob tod toi ton too tos tot tsb tsd tsi tsn tso tss tst ttb ttd tti ttn tto tts ttt