bbb bbd bbo bbs bbw bby bdb bdd bdo bds bdw bdy bob bod boo bos bow boy bsb bsd bso bss bsw bsy bwb bwd bwo bws bwy by- byd byo bys dbb dbd dbo dbs dby ddb ddd ddo dds ddw ddy dob dod doo dos dow doy dsb dsd dso dss dsw dsy dwb dwo dws dww dy- dyb dyd dyo dys dyw dyy ob- obb obd obo obs obw oby odb odd odo ods oo- oob ood ooo oos oow os- osb osd oso oss osw owb owd owo ows oww oyd oyo oys sbb sbd sbo sbs sbw sby sdb sdd sdo sds sdw sdy sob sod soo sos sow soy ss- ssb ssd sso sss ssw swb swd swo sws swy sy- syb syd sys wbb wbd wbo wbs wbw wdb wds wdy wob wod woo wos wow woy wsb wsd wso wss wsw wwd wwo www wy- wyd wyo wys ybs yby ydo yds ydy yob yod yoo yos yow yoy ysb yso yss ysy yyb yys yyy