bbb bbd bbm bbo bbs bby bdb bdd bdm bdo bds bdy bmb bmd bmm bmo bms bob bod bom boo bos boy bsb bsd bsm bso bss bsy by- byd bym byo bys dbb dbd dbm dbo dbs dby ddb ddd ddm ddo dds ddy dmb dmd dmm dmo dms dob dod dom doo dos doy dsb dsd dsm dso dss dsy dy- dyb dyd dym dyo dys dyy m-o mbb mbd mbm mbo mbs mdb mdd mdm mdo mds mdy mmb mmd mmm mmo mms mob mod mom moo mos moy msb msd msm mso mss msy my- myb myd mym myo mys ob- obb obd obm obo obs oby odb odd odm odo ods om- omb omd omm omo oms omy oo- oob ood oom ooo oos os- osb osd osm oso oss oyd oyo oys sbb sbd sbm sbo sbs sby sdb sdd sdm sdo sds sdy smb smd smm smo sms smy sob sod som soo sos soy ss- ssb ssd ssm sso sss sy- syb syd sym sys ybm ybs yby ydo yds ydy ymm ymo yms yob yod yom yoo yos yoy ysb ysm yso yss ysy yyb yys yyy