-er -ey -th ddd dde ddh ddo ddr ddt ddy de- ded dee deh deo der det dey dh- dhd dhe dhh dho dhr dht dod doe doh doo dor dot doy drd dre dro drr drt dry dtd dte dth dto dtr dtt dty dy- dyd dye dyo dyr dyy ed- edd ede edh edo edr edt edy eed eee eeo eer eet eey ehd ehe ehh eho ehr eht eo- eod eoe eoh eoo eor eot erd ere erh ero err ert ery etd ete eth eto etr ett ety eyd eye eyo eyr eyt hdd hde hdh hdo hdr hdt hdy he- hed hee heh heo her het hey hhd hhe hhh hho hhr hht hhy hod hoe hoh hoo hor hot hoy hr- hrd hre hrh hro hrr hrt htd hte hth hto htr htt hty hy- hyd hye hyh hyo hyr hyt hyy odd ode odh odo odr odt oed oee oeh oeo oer oet oey ohd ohe ohh oho ohr oht oo- ood ooh ooo oor oot or- ord ore orh oro orr ort ory ot- otd ote oth oto otr ott oyd oye oyo rdd rde rdh rdo rdr rdt rdy re- red ree reh reo rer ret rey rh- rhd rhe rhh rho rhr rht rod roe roh roo ror rot roy rrd rrh rrr rrt rtd rte rto rtr rtt rty ry- ryd rye ryo ryr ryy tdd tde tdh tdo tdr tdt tdy te- ted tee teh teo ter tet tey th- thd the thh tho thr tht thy to- tod toe toh too tor tot toy trd tre trh tro trr trt try ttd tte tth tto ttr ttt tty tyd tye tyo tyr tyt yde ydo ydt ydy yed yee yeh yeo yer yet yey yhe yht yod yoe yoo yor yot yoy yre yro yrt ytd yte yth yto ytr ytt yye yyt yyy