a-a a-b aaa aab aag aam aan aao aau ab- aba abb abg abm abn abo abu ag- aga agb agg agm agn ago agu ama amb amg amm amn amo amu an- ana anb ang anm ann ano anu aoa aob aog aom aon aoo aou au- aua aub aug aum aun auo b-u baa bab bag bam ban bao bau bba bbb bbg bbm bbn bbo bbu bga bgb bgg bgm bgn bgo bgu bma bmb bmg bmm bmn bmo bmu bna bnb bng bnn bno bnu boa bob bog bom bon boo bou bua bub bug bum bun buo buu gaa gab gag gam gan gao gau gba gbg gbm gbn gbo gbu gga ggb ggg ggm ggn ggo ggu gma gmb gmg gmm gmn gmo gna gnb gnm gnn gno gnu goa gob gog gom gon goo gou gu- gua gub gug gum gun guo guu m-o maa mab mag mam man mao mau mba mbb mbg mbm mbo mbu mga mgb mgm mgn mgo mgu mma mmb mmg mmm mmn mmo mmu mna mnb mng mnm mnn mno mnu moa mob mog mom mon moo mou mua mub mug mum mun muu naa nab nag nam nan nao nau nba nbb nbg nbm nbn nbo nbu nga ngb ngg ngm ngn ngo ngu nma nmb nmg nmm nmn nmo nmu nna nnb nng nnm nnn nno nnu no- noa nob nog nom non noo nou nua nub nug num nun nuo nuu oaa oab oag oam oan oao oau ob- oba obb obg obm obn obo obu oga ogg ogn ogo om- oma omb omg omm omn omo omu on- ona onb ong onn ono onu oo- ooa oob oog oom oon ooo ou- oua oum oun ouo ua- uaa uab uag uam uan uao uau uba ubb ubg ubn ubo ubu uga ugb ugg ugm ugn ugo ugu um- uma umb umg umm umn umo umu un- una unb ung unm unn uno unu uoa uob uog uom uon uoo uua uug uum uun uuu