-er -ey -th eee eeo eer eet eex eey ehe ehh eho ehr eht eo- eoe eoh eoo eor eot ere erh ero err ert ery ete eth eto etr ett etx ety ex- exe exh exo exr ext exx exy eye eyo eyr eyt he- hee heh heo her het hex hey hhe hhh hho hhr hht hhy hoe hoh hoo hor hot hox hoy hr- hre hrh hro hrr hrt hte hth hto htr htt htx hty hy- hye hyh hyo hyr hyt hyy oee oeh oeo oer oet oex oey ohe ohh oho ohr oht oo- ooh ooo oor oot oox or- ore orh oro orr ort orx ory ot- ote oth oto otr ott ox- oxo oxt oxx oxy oye oyo re- ree reh reo rer ret rex rey rh- rhe rhh rho rhr rht roe roh roo ror rot rox roy rrh rrr rrt rte rto rtr rtt rtx rty rxr ry- rye ryo ryr ryy t-x te- tee teh teo ter tet tex tey th- the thh tho thr tht thx thy to- toe toh too tor tot tox toy tre trh tro trr trt trx try tte tth tto ttr ttt ttx tty txe txt tye tyo tyr tyt xee xer xet xex xht xoo xor xot xox xrt xrx xry xtr xtx xty xxo xxx xxy xyr xyy yee yeh yeo yer yet yex yey yhe yht yoe yoo yor yot yox yoy yre yro yrt yte yth yto ytr ytt yxe yxy yye yyt yyy