a-a a-b aaa aab aag aaj aan aar ab- aba abb abg abj abn abr ag- aga agb agg agj agn agr aja ajb ajj ajn ajr an- ana anb ang anj ann anr ar- ara arb arg arj arn arr baa bab bag baj ban bar bba bbb bbg bbn bbr bga bgb bgg bgn bgr bja bjg bjj bjn bjr bna bnb bng bnj bnn bnr bra brb brg brj brn brr gaa gab gag gaj gan gar gba gbg gbj gbn gbr gga ggb ggg ggj ggn ggr gja gjg gjr gna gnb gnn gnr gra grb grg grj grn grr jaa jab jag jaj jan jar jba jbg jbj jbr jga jgb jgn jgr jja jjb jjg jjj jjr jna jng jnj jnn jnr jra jrb jrg jrn jrr naa nab nag naj nan nar nba nbb nbg nbn nbr nga ngb ngg ngj ngn nja njn nna nnb nng nnn nra nrb nrg nrj nrn nrr ra- raa rab rag raj ran rar rba rbb rbg rbn rbr rga rgb rgg rgn rgr rja rjg rjr rna rnb rng rnn rnr rra rrb rrg rrn rrr