a-a a-b aaa aab aad aag aaw ab- aba abb abd abg abw ad- ada adb add adg adw ag- aga agb agd agg agw aw- awa awb awd awg aww baa bab bad bag baw bba bbb bbd bbg bbw bda bdb bdd bdg bdw bga bgb bgd bgg bgw bwa bwb bwd bwg daa dab dad dag daw dba dbb dbd dbg dda ddb ddd ddg ddw dga dgd dgg dgw dwa dwb dwg dww g-d gaa gab gad gag gaw gba gbd gbg gbw gda gdb gdd gdw gga ggb ggd ggg ggw gwa gwb gwd gwg waa wab wad wag waw wba wbb wbd wbg wbw wda wdb wdg wga wgb wgw wwa wwd www