a-a a-b a-z aaa aab aag aam aau aaz ab- aba abb abg abm abu abz ag- aga agb agg agm agu agz ama amb amg amm amu amz au- aua aub aug aum auz az- aza azb azg azm azu azz b-u baa bab bag bam bau baz bba bbb bbg bbm bbu bga bgb bgg bgm bgu bgz bma bmb bmg bmm bmu bmz bua bub bug bum buu buz bza bzu bzz gaa gab gag gam gau gaz gba gbg gbm gbu gbz gga ggb ggg ggm ggu ggz gma gmb gmg gmm gmz gu- gua gub gug gum guu guz gza gzu maa mab mag mam mau maz mba mbb mbg mbm mbu mga mgb mgm mgu mgz mma mmb mmg mmm mmu mmz mua mub mug mum muu mza mzb mzm ua- uaa uab uag uam uau uaz uba ubb ubg ubu uga ugb ugg ugm ugu um- uma umb umg umm umu uua uug uum uuu uza uzb uzu z-g zaa zab zag zam zaz zbb zbm zgb zgg zma zmb zmm zub zug zum zuz zzz