-er -ey -up c-- ccc cce ccp ccr ccs ccu ce- cec cee cep cer ces ceu cey cpc cpe cpp cpr cps cpu crc cre crp crr crs cru cry csc cse csp csr css csu csy cuc cue cup cur cus cuu cuy cyc cye cyp cyr cys ec- ecc ece ecr ecs ecu eec eee eep eer ees eey ep- epc epe epp epr eps epu erc ere erp err ers eru ery es- esc ese esp esr ess esu esy eu- euc eue eup eur eus eyc eye eyp eyr eys p-p pcc pce pcp pcr pcs pcu pec pee pep per pes peu pey ppc ppe ppp ppr pps ppu prc pre prp prr prs pru pry ps- psc pse psp psr pss psu psy puc pue pup pur pus puu puy py- pyc pye pyr pys pyu rcc rce rcp rcr rcs rcu re- rec ree rep rer res reu rey rpc rpe rpp rpr rps rpu rrc rrp rrr rrs rru rsc rse rsp rsr rss rsu ruc rue rup rur rus ruu ruy ry- ryc rye ryr rys ryu ryy scc sce scp scr scs scu se- sec see sep ser ses seu sey spc spe spp spr sps spu spy sr- src sre srp srr srs sry ss- ssc sse ssp ssr sss ssu suc sue sup sur sus suu suy sy- syc sye syp syr sys syu ucc uce ucp ucr ucs ucu uec uee uep uer ues uey up- upc upe upp upr ups upu ur- urc ure urp urr urs uru ury usc use usp usr uss usu uuc uue uur uus uuu uyc uys uyu ycc yce ycp ycs ycu ycy yec yee yep yer yes yey yps ypu yrc yre yrp yrs yru ysc yse ysp ysr yss ysu ysy yue yup yur yus yuu yuy yyc yye yys yyu yyy