a-a a-b aaa aab aag aaj aan ab- aba abb abg abj abn ag- aga agb agg agj agn aja ajb ajj ajn an- ana anb ang anj ann baa bab bag baj ban bba bbb bbg bbn bga bgb bgg bgn bja bjg bjj bjn bna bnb bng bnj bnn gaa gab gag gaj gan gba gbg gbj gbn gga ggb ggg ggj ggn gja gjg gna gnb gnn jaa jab jag jaj jan jba jbg jbj jga jgb jgn jja jjb jjg jjj jna jng jnj jnn naa nab nag naj nan nba nbb nbg nbn nga ngb ngg ngj ngn nja njn nna nnb nng nnn