a-a a-b aaa aab aag aar aaw aay ab- aba abb abg abr abw aby ag- aga agb agg agr agw agy ar- ara arb arg arr arw ary aw- awa awb awg awr aww awy ay- aya ayr ayw baa bab bag bar baw bay bba bbb bbg bbr bbw bby bga bgb bgg bgr bgw bra brb brg brr brw bry bwa bwb bwg bwr bwy by- bya byg byr gaa gab gag gar gaw gay gba gbg gbr gbw gby gga ggb ggg ggr ggw gra grb grg grr grw gry gwa gwb gwg gwr gy- gya gyb gyr ra- raa rab rag rar raw ray rba rbb rbg rbr rbw rga rgb rgg rgr rgw rra rrb rrg rrr rwa rwb rwr rwy ry- rya ryg ryr ryy waa wab wag war waw way wba wbb wbg wbr wbw wga wgb wgr wgw wgy wr- wra wrg wrr wrw wry wwa www wy- wya wyr yaa yab yag yar yaw yay ybg ybr yby yga yra yrg ywg yyb yyg yyy