a-a a-b aaa aab aak aar aaw aay ab- aba abb abk abr abw aby aka akb akk akr akw ar- ara arb ark arr arw ary aw- awa awb awk awr aww awy ay- aya ayk ayr ayw baa bab bak bar baw bay bba bbb bbk bbr bbw bby bka bkb bkk bkr bkw bra brb brk brr brw bry bwa bwb bwk bwr bwy by- bya byk byr ka- kaa kab kak kar kaw kay kba kbb kbk kbr kbw kkb kkk kkr kky kra krk krr krw kry kw- kwa kwk kww kya kyr kyw ra- raa rab rak rar raw ray rba rbb rbk rbr rbw rkb rkk rky rra rrb rrk rrr rwa rwb rwr rwy ry- rya ryk ryr ryy waa wab wak war waw way wba wbb wbr wbw wka wkb wkr wkw wky wr- wra wrk wrr wrw wry wwa www wy- wya wyk wyr yaa yab yak yar yaw yay ybr yby yka ykk yra yyb yyy