a-a a-b aaa aab aag aak aam aan aao ab- aba abb abg abk abm abn abo ag- aga agb agg agk agm agn ago aka akb akg akk akm akn ako ama amb amg amk amm amn amo an- ana anb ang ank anm ann ano aoa aob aog aok aom aon aoo baa bab bag bak bam ban bao bba bbb bbg bbk bbm bbn bbo bga bgb bgg bgk bgm bgn bgo bka bkb bkg bkk bkm bkn bko bma bmb bmg bmk bmm bmn bmo bna bnb bng bnk bnn bno boa bob bog bok bom bon boo gaa gab gag gak gam gan gao gba gbg gbk gbm gbn gbo gga ggb ggg ggm ggn ggo gka gkb gkm gkn gko gma gmb gmg gmm gmn gmo gna gnb gnm gnn gno goa gob gog gok gom gon goo ka- kaa kab kag kak kam kan kao kba kbb kbk kbm kbn kbo kga kgb kgm kgo kkb kkk kkm kkn kma kmb kmg kmk kmm kmo kn- kna kng knk knm knn kno koa kob kog kok kom kon koo m-o maa mab mag mak mam man mao mba mbb mbg mbk mbm mbo mga mgb mgk mgm mgn mgo mka mkb mkg mkk mkm mkn mko mma mmb mmg mmk mmm mmn mmo mna mnb mng mnk mnm mnn mno moa mob mog mok mom mon moo naa nab nag nak nam nan nao nba nbb nbg nbk nbm nbn nbo nga ngb ngg ngk ngm ngn ngo nka nkk nkm nkn nko nma nmb nmg nmk nmm nmn nmo nna nnb nng nnk nnm nnn nno no- noa nob nog nok nom non noo oaa oab oag oak oam oan oao ob- oba obb obg obk obm obn obo oga ogg ogn ogo oka okb okg okk oko om- oma omb omg omm omn omo on- ona onb ong onk onn ono oo- ooa oob oog ook oom oon ooo