-er -ey c-- ccc cce ccr ccs ccu ccv ce- cec cee cer ces ceu cev cey crc cre crr crs cru crv cry csc cse csr css csu csv csy cuc cue cur cus cuu cuv cuy cvc cve cvr cvs cvu cvv cyc cye cyr cys ec- ecc ece ecr ecs ecu ecv eec eee eer ees eev eey erc ere err ers eru erv ery es- esc ese esr ess esu esv esy eu- euc eue eur eus euv evc eve evr evs evv evy eyc eye eyr eys rcc rce rcr rcs rcu rcv re- rec ree rer res reu rev rey rrc rrr rrs rru rsc rse rsr rss rsu rsv ruc rue rur rus ruu ruv ruy rvc rve rvr rvs rvu rvv rvy ry- ryc rye ryr rys ryu ryy scc sce scr scs scu scv se- sec see ser ses seu sev sey sr- src sre srr srs srv sry ss- ssc sse ssr sss ssu ssv suc sue sur sus suu suv suy svc sve svr svs svu svv svy sy- syc sye syr sys syu ucc uce ucr ucs ucu ucv uec uee uer ues uey ur- urc ure urr urs uru ury usc use usr uss usu usv uuc uue uur uus uuu uvc uve uvs uvu uvv uyc uys uyu v-e vcc vce vcr vcs vcu vcy vec vee ver ves veu vey vrc vre vrr vrs vru vry vsc vse vsr vss vsu vsv vue vur vus vuv vvc vvr vvs vvv vye ycc yce ycs ycu ycv ycy yec yee yer yes yev yey yrc yre yrs yru ysc yse ysr yss ysu ysy yue yur yus yuu yuv yuy yve yvr yvy yyc yye yys yyu yyy