-er -ey ddd dde ddq ddr dds ddu ddy de- ded dee deq der des deu dey dqe dqs drd dre drq drr drs dru dry dsd dse dsq dsr dss dsu dsy dud due dur dus duy dy- dyd dye dyr dys dyu dyy ed- edd ede edr eds edu edy eed eee eer ees eey eqe eqq eqs equ erd ere erq err ers eru ery es- esd ese esq esr ess esu esy eu- eud eue eur eus eyd eye eyr eys qdr qds qed qee qqq qqu qre qrs qru qsd qsr qu- qud que qur qus quy rdd rde rdr rds rdu rdy re- red ree req rer res reu rey rqs rrd rrq rrr rrs rru rsd rse rsq rsr rss rsu rud rue rur rus ruu ruy ry- ryd rye ryr rys ryu ryy sdd sde sdq sdr sds sdu sdy se- sed see seq ser ses seu sey sqd sqq sqr sqs sr- srd sre srq srr srs sry ss- ssd sse ssq ssr sss ssu sud sue suq sur sus suu suy sy- syd sye syr sys syu udd ude udr uds udu ued uee uer ues uey ur- urd ure urr urs uru ury usd use usr uss usu uue uur uus uuu uys uyu yde yds ydy yed yee yer yes yey yqr yre yrs yru yse ysr yss ysu ysy yud yue yur yus yuu yuy yye yys yyu yyy