-er -ey -th c-- ccc cce cch cco ccr cct ce- cec cee ceh ceo cer cet cey ch- chc che chh cho chr cht chy co- coc coe coh coo cor cot coy crc cre crh cro crr crt cry ctc cte cth cto ctr ctt cty cyc cye cyo cyr cyt ec- ecc ece ech eco ecr ect eec eee eeo eer eet eey ehc ehe ehh eho ehr eht eo- eoc eoe eoh eoo eor eot erc ere erh ero err ert ery etc ete eth eto etr ett ety eyc eye eyo eyr eyt hcc hce hch hco hcr hct hcy he- hec hee heh heo her het hey hhc hhe hhh hho hhr hht hhy hoc hoe hoh hoo hor hot hoy hr- hrc hre hrh hro hrr hrt htc hte hth hto htr htt hty hy- hyc hye hyh hyo hyr hyt hyy oc- occ och oco ocr oct oec oee oeh oeo oer oet oey ohc ohe ohh oho ohr oht oo- ooc ooh ooo oor oot or- orc ore orh oro orr ort ory ot- otc ote oth oto otr ott oye oyo rcc rce rch rco rcr rct re- rec ree reh reo rer ret rey rh- rhc rhe rhh rho rhr rht roc roe roh roo ror rot roy rrc rrh rrr rrt rtc rte rto rtr rtt rty ry- ryc rye ryo ryr ryy tcc tce tch tco tcr tct te- tec tee teh teo ter tet tey th- thc the thh tho thr tht thy to- toc toe toh too tor tot toy trc tre trh tro trr trt try ttc tte tth tto ttr ttt tty tyc tye tyo tyr tyt ycc yce ych yco ycy yec yee yeh yeo yer yet yey yhc yhe yht yoc yoe yoo yor yot yoy yrc yre yro yrt ytc yte yth yto ytr ytt yyc yye yyt yyy