-th bbb bbd bbh bbo bbs bbt bby bdb bdd bdh bdo bds bdt bdy bhb bhd bhh bho bhs bht bob bod boh boo bos bot boy bsb bsd bsh bso bss bst bsy btb btd bth bto bts btt bty by- byd byh byo bys byt dbb dbd dbh dbo dbs dbt dby ddb ddd ddh ddo dds ddt ddy dh- dhb dhd dhh dho dhs dht dob dod doh doo dos dot doy dsb dsd dsh dso dss dst dsy dtb dtd dth dto dts dtt dty dy- dyb dyd dyo dys dyy hbb hbd hbh hbo hbs hbt hby hdb hdd hdh hdo hds hdt hdy hhb hhd hhh hho hhs hht hhy hob hod hoh hoo hos hot hoy hsb hsd hsh hss hst hsy htb htd hth hto hts htt hty hy- hyb hyd hyh hyo hys hyt hyy ob- obb obd obh obo obs obt oby odb odd odh odo ods odt ohd ohh oho ohs oht oo- oob ood ooh ooo oos oot os- osb osd osh oso oss ost ot- otb otd oth oto ots ott oyd oyo oys sbb sbd sbh sbo sbs sbt sby sdb sdd sdh sdo sds sdt sdy sh- shb shd shh sho shs sht shy sob sod soh soo sos sot soy ss- ssb ssd ssh sso sss sst stb std sth sto sts stt sty sy- syb syd syh sys syt tbb tbd tbh tbo tbs tbt tdb tdd tdh tdo tds tdt tdy th- thb thd thh tho ths tht thy to- tob tod toh too tos tot toy tsb tsd tsh tso tss tst tsy ttb ttd tth tto tts ttt tty tyd tyo tys tyt ybs yby ydo yds ydt ydy yhs yht yob yod yoo yos yot yoy ysb yso yss yst ysy ytd yth yto yts ytt yyb yys yyt yyy