b-u bbb bbd bbm bbo bbs bbu bby bdb bdd bdm bdo bds bdu bdy bmb bmd bmm bmo bms bmu bob bod bom boo bos bou boy bsb bsd bsm bso bss bsu bsy bub bud bum buo bus buu buy by- byd bym byo bys byu dbb dbd dbm dbo dbs dbu dby ddb ddd ddm ddo dds ddu ddy dmb dmd dmm dmo dms dmu dob dod dom doo dos dou doy dsb dsd dsm dso dss dsu dsy dub dud dum duo dus duy dy- dyb dyd dym dyo dys dyu dyy m-o mbb mbd mbm mbo mbs mbu mdb mdd mdm mdo mds mdu mdy mmb mmd mmm mmo mms mmu mob mod mom moo mos mou moy msb msd msm mso mss msu msy mub mud mum mus muu muy my- myb myd mym myo mys myu ob- obb obd obm obo obs obu oby odb odd odm odo ods odu om- omb omd omm omo oms omu omy oo- oob ood oom ooo oos os- osb osd osm oso oss osu ou- oud oum ouo ous oyd oyo oys sbb sbd sbm sbo sbs sbu sby sdb sdd sdm sdo sds sdu sdy smb smd smm smo sms smu smy sob sod som soo sos sou soy ss- ssb ssd ssm sso sss ssu sub sud sum suo sus suu suy sy- syb syd sym sys syu ubb ubo ubs ubu uby udb udd udm udo uds udu um- umb umd umm umo ums umu uob uod uom uoo uos usb usd usm uso uss usu uum uus uuu uyo uys uyu ybm ybs yby ydo yds ydy ymm ymo yms yob yod yom yoo yos you yoy ysb ysm yso yss ysu ysy yud yum yuo yus yuu yuy yyb yys yyu yyy