-er -ey c-- ccc ccd cce cco ccr ccs ccu cdc cdd cde cdo cdr cds cdu cdy ce- cec ced cee ceo cer ces ceu cey co- coc cod coe coo cor cos cou coy crc crd cre cro crr crs cru cry csc csd cse cso csr css csu csy cuc cud cue cuo cur cus cuu cuy cyc cyd cye cyo cyr cys dcc dcd dce dco dcr dcs dcu ddc ddd dde ddo ddr dds ddu ddy de- dec ded dee deo der des deu dey doc dod doe doo dor dos dou doy drc drd dre dro drr drs dru dry dsc dsd dse dso dsr dss dsu dsy duc dud due duo dur dus duy dy- dyc dyd dye dyo dyr dys dyu dyy ec- ecc ecd ece eco ecr ecs ecu ed- edc edd ede edo edr eds edu edy eec eed eee eeo eer ees eey eo- eoc eod eoe eoo eor eos eou erc erd ere ero err ers eru ery es- esc esd ese eso esr ess esu esy eu- euc eud eue eur eus eyc eyd eye eyo eyr eys oc- occ ocd oco ocr ocs ocu odc odd ode odo odr ods odu oec oed oee oeo oer oes oey oo- ooc ood ooo oor oos or- orc ord ore oro orr ors oru ory os- osc osd ose oso osr oss osu ou- ouc oud oue ouo our ous oyd oye oyo oys rcc rcd rce rco rcr rcs rcu rdc rdd rde rdo rdr rds rdu rdy re- rec red ree reo rer res reu rey roc rod roe roo ror ros rou roy rrc rrd rrr rrs rru rsc rsd rse rso rsr rss rsu ruc rud rue ruo rur rus ruu ruy ry- ryc ryd rye ryo ryr rys ryu ryy scc scd sce sco scr scs scu sdc sdd sde sdo sdr sds sdu sdy se- sec sed see seo ser ses seu sey soc sod soe soo sor sos sou soy sr- src srd sre sro srr srs sry ss- ssc ssd sse sso ssr sss ssu suc sud sue suo sur sus suu suy sy- syc syd sye syr sys syu ucc ucd uce uco ucr ucs ucu udc udd ude udo udr uds udu uec ued uee uer ues uey uoc uod uoe uoo uor uos ur- urc urd ure uro urr urs uru ury usc usd use uso usr uss usu uuc uue uur uus uuu uyc uyo uys uyu ycc ycd yce yco ycs ycu ycy yde ydo yds ydy yec yed yee yeo yer yes yey yoc yod yoe yoo yor yos you yoy yrc yre yro yrs yru ysc yse yso ysr yss ysu ysy yud yue yuo yur yus yuu yuy yyc yye yys yyu yyy