-er -ey c-- ccc cce ccr ccs cct ccu ce- cec cee cer ces cet ceu cey crc cre crr crs crt cru cry csc cse csr css cst csu csy ctc cte ctr cts ctt ctu cty cuc cue cur cus cut cuu cuy cyc cye cyr cys cyt ec- ecc ece ecr ecs ect ecu eec eee eer ees eet eey erc ere err ers ert eru ery es- esc ese esr ess est esu esy etc ete etr ets ett etu ety eu- euc eue eur eus eut eyc eye eyr eys eyt rcc rce rcr rcs rct rcu re- rec ree rer res ret reu rey rrc rrr rrs rrt rru rsc rse rsr rss rst rsu rtc rte rtr rts rtt rtu rty ruc rue rur rus rut ruu ruy ry- ryc rye ryr rys ryu ryy scc sce scr scs sct scu se- sec see ser ses set seu sey sr- src sre srr srs srt sry ss- ssc sse ssr sss sst ssu stc ste str sts stt stu sty suc sue sur sus sut suu suy sy- syc sye syr sys syt syu tcc tce tcr tcs tct tcu te- tec tee ter tes tet teu tey trc tre trr trs trt tru try tsc tse tsr tss tst tsu tsy ttc tte ttr tts ttt ttu tty tuc tue tur tus tut tuu tuy tyc tye tyr tys tyt ucc uce ucr ucs uct ucu uec uee uer ues uet uey ur- urc ure urr urs urt uru ury usc use usr uss ust usu utc ute utr uts utt utu uty uuc uue uur uus uut uuu uyc uys uyu ycc yce ycs ycu ycy yec yee yer yes yet yey yrc yre yrs yrt yru ysc yse ysr yss yst ysu ysy ytc yte ytr yts ytt ytu yue yur yus yut yuu yuy yyc yye yys yyt yyu yyy