-er -ey ddd dde ddh ddn ddr ddx ddy de- ded dee deh den der dex dey dh- dhd dhe dhh dhr dnd dne dnh dnn dnr dny drd dre drn drr drx dry dxd dxn dxr dxx dy- dyd dye dyn dyr dyy ed- edd ede edh edn edr edx edy eed eee een eer eex eey ehd ehe ehh ehn ehr en- end ene enh enn enr eny erd ere erh ern err ery ex- exd exe exh exr exx exy eyd eye eyn eyr hdd hde hdh hdn hdr hdx hdy he- hed hee heh hen her hex hey hhd hhe hhh hhn hhr hhy hnd hne hnh hnn hny hr- hrd hre hrh hrn hrr hxd hy- hyd hye hyh hyn hyr hyy ndd nde ndh ndn ndr ndy ne- ned nee neh nen ner nex ney nhd nhe nhh nhn nhr nhy nne nnh nnn nrd nre nrn nrr nrx nry nxd nyd nye nyn nyx nyy rdd rde rdh rdn rdr rdx rdy re- red ree reh ren rer rex rey rh- rhd rhe rhh rhn rhr rnd rnh rnn rnr rny rrd rrh rrn rrr rxr ry- ryd rye ryn ryr ryy xde xdh xdr xed xee xen xer xex xhd xrd xrx xry xxx xxy xyr xyy yde ydn ydy yed yee yeh yen yer yex yey yhe ynd yne ynn yny yre yrn yxe yxy yye yyy