a-a a-b aaa aab aag aah aam aao aas ab- aba abb abg abh abm abo abs ag- aga agb agg agh agm ago ags aha ahb ahg ahh ahm aho ahs ama amb amg amh amm amo ams aoa aob aog aoh aom aoo aos as- asa asb asg ash asm aso ass baa bab bag bah bam bao bas bba bbb bbg bbh bbm bbo bbs bga bgb bgg bgh bgm bgo bgs bha bhb bhg bhh bhm bho bhs bma bmb bmg bmh bmm bmo bms boa bob bog boh bom boo bos bsa bsb bsg bsh bsm bso bss gaa gab gag gah gam gao gas gba gbg gbh gbm gbo gbs gga ggb ggg ggh ggm ggo ggs gha ghb ghg ghh gho ghs gma gmb gmg gmh gmm gmo gms goa gob gog goh gom goo gos gsa gsb gsg gsm gso gss haa hab hag hah ham hao has hba hbb hbg hbh hbm hbo hbs hga hgb hgg hgh hgm hgo hgs hha hhb hhg hhh hhm hho hhs hma hmb hmg hmh hmm hmo hms hoa hob hog hoh hom hoo hos hsa hsb hsg hsh hsm hss m-o maa mab mag mah mam mao mas mba mbb mbg mbh mbm mbo mbs mga mgb mgh mgm mgo mgs mha mhg mhh mhm mho mhs mma mmb mmg mmh mmm mmo mms moa mob mog moh mom moo mos msa msb msg msh msm mso mss oaa oab oag oah oam oao oas ob- oba obb obg obh obm obo obs oga ogg ogh ogo ogs oha ohg ohh ohm oho ohs om- oma omb omg omh omm omo oms oo- ooa oob oog ooh oom ooo oos os- osa osb osg osh osm oso oss saa sab sag sah sam sao sas sba sbb sbg sbh sbm sbo sbs sga sgb sgg sgh sgm sgo sgs sh- sha shb shg shh shm sho shs sma smb smg smh smm smo sms soa sob sog soh som soo sos ss- ssa ssb ssg ssh ssm sso sss