-er -ey a-a a-b a-q aaa aab aae aaq aar aay ab- aba abb abe abq abr aby aea aeb aee aeq aer aey aqa aqr ar- ara arb are arq arr ary ay- aya aye ayr baa bab bae baq bar bay bba bbb bbe bbq bbr bby be- bea beb bee beq ber bey bqe bra brb bre brq brr bry by- bya bye byq byr eaa eab eae ear eba ebb ebe ebq ebr eby eea eeb eee eer eey eqa eqe eqq era erb ere erq err ery eya eye eyr qaa qar qba qbe qbq qee qqq qra qrb qre ra- raa rab rae raq rar ray rba rbb rbe rbr re- rea reb ree req rer rey rra rrb rrq rrr ry- rya rye ryr ryy yaa yab yae yar yay ybe ybr yby yea yeb yee yer yey yqb yqr yra yre yyb yye yyy