-er -ey c-- ccc cce cco ccr ccs ccu ce- cec cee ceo cer ces ceu cey co- coc coe coo cor cos cou coy crc cre cro crr crs cru cry csc cse cso csr css csu csy cuc cue cuo cur cus cuu cuy cyc cye cyo cyr cys ec- ecc ece eco ecr ecs ecu eec eee eeo eer ees eey eo- eoc eoe eoo eor eos eou erc ere ero err ers eru ery es- esc ese eso esr ess esu esy eu- euc eue eur eus eyc eye eyo eyr eys oc- occ oco ocr ocs ocu oec oee oeo oer oes oey oo- ooc ooo oor oos or- orc ore oro orr ors oru ory os- osc ose oso osr oss osu ou- ouc oue ouo our ous oye oyo oys rcc rce rco rcr rcs rcu re- rec ree reo rer res reu rey roc roe roo ror ros rou roy rrc rrr rrs rru rsc rse rso rsr rss rsu ruc rue ruo rur rus ruu ruy ry- ryc rye ryo ryr rys ryu ryy scc sce sco scr scs scu se- sec see seo ser ses seu sey soc soe soo sor sos sou soy sr- src sre sro srr srs sry ss- ssc sse sso ssr sss ssu suc sue suo sur sus suu suy sy- syc sye syr sys syu ucc uce uco ucr ucs ucu uec uee uer ues uey uoc uoe uoo uor uos ur- urc ure uro urr urs uru ury usc use uso usr uss usu uuc uue uur uus uuu uyc uyo uys uyu ycc yce yco ycs ycu ycy yec yee yeo yer yes yey yoc yoe yoo yor yos you yoy yrc yre yro yrs yru ysc yse yso ysr yss ysu ysy yue yuo yur yus yuu yuy yyc yye yys yyu yyy