-er -ey a-a a-b aaa aab aae aaj aar aay ab- aba abb abe abj abr aby aea aeb aee aej aer aey aja ajb aje ajj ajr ajy ar- ara arb are arj arr ary ay- aya aye ayr baa bab bae baj bar bay bba bbb bbe bbr bby be- bea beb bee ber bey bja bjj bjr bra brb bre brj brr bry by- bya bye byj byr eaa eab eae eaj ear eba ebb ebe ebj ebr eby eea eeb eee eer eey eja era erb ere err ery eya eye eyr jaa jab jae jaj jar jay jba jbj jbr jea jeb jee jej jer jey jja jjb jjj jjr jjy jra jrb jrr jyj jyr ra- raa rab rae raj rar ray rba rbb rbe rbr re- rea reb ree rer rey rja rjr rra rrb rrr ry- rya rye ryr ryy yaa yab yae yar yay ybe ybr yby yea yeb yee yer yey yra yre yyb yye yyy