-er -ey ddd dde ddh ddp ddr ddx ddy de- ded dee deh dep der dex dey dh- dhd dhe dhh dhp dhr dpd dpe dph dpp dpr drd dre drp drr drx dry dxd dxp dxr dxx dy- dyd dye dyp dyr dyy ed- edd ede edh edp edr edx edy eed eee eep eer eex eey ehd ehe ehh ehp ehr ep- epd epe eph epp epr epx erd ere erh erp err ery ex- exd exe exh exp exr exx exy eyd eye eyp eyr hdd hde hdh hdp hdr hdx hdy he- hed hee heh hep her hex hey hhd hhe hhh hhp hhr hhy hpd hpe hph hpp hpr hpy hr- hrd hre hrh hrp hrr hxd hy- hyd hye hyh hyp hyr hyy p-p pdd pde pdh pdp pdr pdx ped pee peh pep per pex pey phd phe php phr phx phy ppd ppe pph ppp ppr ppx prd pre prh prp prr prx pry pxe pxr py- pyd pye pyr pyx rdd rde rdh rdp rdr rdx rdy re- red ree reh rep rer rex rey rh- rhd rhe rhh rhp rhr rpd rpe rph rpp rpr rpx rrd rrh rrp rrr rxp rxr ry- ryd rye ryr ryy xde xdh xdr xed xee xep xer xex xhd xhp xpd xpe xpp xrd xrx xry xxp xxx xxy xyp xyr xyy yde ydy yed yee yeh yep yer yex yey yhe ypd yre yrp yxe yxy yye yyy