a-a a-b aaa aab aam aao aas aaw aay ab- aba abb abm abo abs abw aby ama amb amm amo ams amw amy aoa aob aom aoo aos aow as- asa asb asm aso ass asw asy aw- awa awb awm awo aws aww awy ay- aya ayo ays ayw baa bab bam bao bas baw bay bba bbb bbm bbo bbs bbw bby bma bmb bmm bmo bms bmw boa bob bom boo bos bow boy bsa bsb bsm bso bss bsw bsy bwa bwb bwo bws bwy by- bya bym byo bys m-o m-w maa mab mam mao mas maw may mba mbb mbm mbo mbs mbw mma mmb mmm mmo mms mmw moa mob mom moo mos mow moy msa msb msm mso mss msw msy mwa mwb mwm mwo mws mww my- mya myb mym myo mys myw oaa oab oam oao oas oaw ob- oba obb obm obo obs obw oby om- oma omb omm omo oms omw omy oo- ooa oob oom ooo oos oow os- osa osb osm oso oss osw owa owb owm owo ows oww oya oyo oys saa sab sam sao sas saw say sba sbb sbm sbo sbs sbw sby sma smb smm smo sms smw smy soa sob som soo sos sow soy ss- ssa ssb ssm sso sss ssw swa swb swm swo sws swy sy- sya syb sym sys waa wab wam wao was waw way wba wbb wbo wbs wbw wm- wma wmb wmm wmo wms woa wob wom woo wos wow woy wsa wsb wsm wso wss wsw wwa wwm wwo www wy- wya wyo wys yaa yab yam yao yas yaw yay ybm ybs yby yma ymm ymo yms yob yom yoo yos yow yoy ysa ysb ysm yso yss ysy yyb yys yyy